- Kerry, John (United States senator and secretary of state)
John Kerry is a U.S. politician who served in the Senate (1985–2013) and who was the Democratic Party’s nominee for president in 2004. He later was secretary of state (2013–17) in the administration of Pres. Barack Obama. Kerry was born in a Denver military hospital, the son of Richard Kerry, a
- Kerry, John Forbes (United States senator and secretary of state)
John Kerry is a U.S. politician who served in the Senate (1985–2013) and who was the Democratic Party’s nominee for president in 2004. He later was secretary of state (2013–17) in the administration of Pres. Barack Obama. Kerry was born in a Denver military hospital, the son of Richard Kerry, a
- Kerry, Peggy (American prostitute)
New York slave rebellion of 1741: …implicated a white prostitute named Peggy Kerry, who had ties to Caesar. Kerry was then forced to testify and implicated many Blacks in the conspiracy, and, on the basis of her testimony, those named were kept in custody. Those held in custody were also forced to provide testimony and name…
- Kerschensteiner, Georg (German educator)
Georg Kerschensteiner was a German educational theorist and reformer who was a leader in the growth of vocational education in Germany. Kerschensteiner taught mathematics in Nürnberg and Schweinfurt before being named director of public schools in Munich in 1895. In that post, which he held until
- Kerschensteiner, Georg Michael (German educator)
Georg Kerschensteiner was a German educational theorist and reformer who was a leader in the growth of vocational education in Germany. Kerschensteiner taught mathematics in Nürnberg and Schweinfurt before being named director of public schools in Munich in 1895. In that post, which he held until
- Kersee, Bob (American track coach)
Florence Griffith Joyner: Flash and Dash: …attention of well-known track coach Bob Kersee, who later recruited her to run for California State University at Northridge and, in 1980, for the University of California at Los Angeles.
- Kersey, Jerome (American basketball player)
Portland Trail Blazers: …guard Terry Porter, and forward Jerome Kersey—won their first three playoff series to capture the Western Conference title. In the NBA Finals the team was defeated by the Detroit Pistons in five games. The Blazers were eliminated by the Lakers in the conference finals the following season after posting a…
- Kersey, John, the Younger (British lexicographer)
dictionary: From 1604 to 1828: …by the first professional lexicographer, John Kersey the Younger. This work, A New English Dictionary, incorporated much from the tradition of spelling books and discarded most of the fantastic words that had beguiled earlier lexicographers. As a result, it served the reasonable needs of ordinary users of the language. Kersey…
- Kershaw (county, South Carolina, United States)
Kershaw, county, central South Carolina, U.S., northeast of Columbia. The Lynches River forms the northeastern border. The county is also drained by the Wateree River, which is impounded by Wateree Dam to form Wateree Lake, which in turn provides part of the western border. Most of the county lies
- Kershaw, Clayton (American baseball player)
Clayton Kershaw is an American former professional baseball player who is among the sport’s best pitchers, winning three Cy Young Awards (2011, 2013, and 2014). He helped the Los Angeles Dodgers win the World Series in 2020 and 2025. During the latter season Kershaw became the 20th pitcher in MLB
- Kershaw, Clayton Edward (American baseball player)
Clayton Kershaw is an American former professional baseball player who is among the sport’s best pitchers, winning three Cy Young Awards (2011, 2013, and 2014). He helped the Los Angeles Dodgers win the World Series in 2020 and 2025. During the latter season Kershaw became the 20th pitcher in MLB
- Kershner, Irvin (American director)
Irvin Kershner was an American television and film director who worked in a variety of genres but was perhaps best known for The Empire Strikes Back (1980) from the Star Wars series. Kershner attended Temple University and later studied design at the University of California, Los Angeles (UCLA),
- Kershner, Isadore (American director)
Irvin Kershner was an American television and film director who worked in a variety of genres but was perhaps best known for The Empire Strikes Back (1980) from the Star Wars series. Kershner attended Temple University and later studied design at the University of California, Los Angeles (UCLA),
- Kerst, Donald W. (American physicist)
particle accelerator: Colliding-beam storage rings: Donald W. Kerst, builder of the first betatron, realized in 1956 that, though the beam current in a high-energy accelerator is small, the currents circulating in the magnet rings are effectively much larger because of the high orbital frequency of the particles. Thus, if the…
- Kersting, Georg Friedrich (painter)
Biedermeier style: …representative painters include Franz Krüger, Georg Friedrich Kersting, Julius Oldach, Carl Spitzweg, and Ferdinand Georg Waldmüller.
- Kertajaya (king of Kaḍiri)
Kaḍiri: …last king of Kaḍiri was Kertajaya, who reduced the power of the Brahmans and hence came into conflict with them. A rebel, Ken Angrok, later the king of Singhasāri, made a secret agreement with the Brahmans and in 1222 defeated Kertajaya at Ganter. In the place of Kaḍiri, the kingdom…
- Kertanagara (king of Indonesia)
Kertanagara was the last king (1268–92) of Tumapel (or Singhasāri) in Java, still venerated among the Javanese as one of their greatest rulers. He united Java, extended his influence over Sumatra, and resisted Mongol attempts to exact tribute from his kingdom. Kertanagara was the son of princely
- Kertarajasa (king of Indonesia)
Indonesia: The Majapahit era: …Kertanagara’s son-in-law, later known as Kertarajasa, who used the Mongols to his own advantage and then forced them to withdraw in confusion. The capital city of the kingdom was moved to Majapahit. For some years the new ruler and his son, who regarded themselves as successors of Kertanagara, had to…
- Kertész, André (Hungarian-born American photographer)
André Kertész was a Hungarian-born American photographer known for his lyrical and formally rigorous pictures of everyday life. One of the most inventive photographers of the 20th century, Kertész set the standard for the use of the handheld camera, created a highly autobiographical body of work,
- Kertész, Imre (Hungarian writer)
Imre Kertész was a Hungarian author best known for his semiautobiographical accounts of the Holocaust. In 2002 he received the Nobel Prize for Literature. At age 14 Kertész was deported with other Hungarian Jews during World War II to the Auschwitz concentration camp in Nazi-occupied Poland. He was
- Kertész, Mihály (Hungarian-American director, actor, and writer)
Michael Curtiz was a Hungarian-born American motion-picture director whose prolific output as a contract director for Warner Brothers consisted of numerous genre films along with a string of motion picture classics that include Angels with Dirty Faces (1938), Casablanca (1942), and Mildred Pierce
- Kerulen (river, Asia)
Mongolia: Drainage: …third longest river, the Kherlen (Kerulen), runs south from its source in the Khentii Mountains before turning eastward and flowing across eastern Mongolia and into Lake Hulun (Mongolian: Dalai Nuur) in northeastern Inner Mongolia Autonomous Region of China. The largest rivers draining into the Great Lakes region of the Mongolian…
- Kerwin, Joseph (American astronaut and physician)
Joseph Kerwin is a U.S. astronaut and physician who served as science pilot on Skylab 2, the first crewed mission to the first U.S. space station. Kerwin received his degree in medicine in 1957 from Northwestern University Medical School in Chicago, Illinois, after which he joined the U.S. Navy
- Kerwin, Joseph Peter (American astronaut and physician)
Joseph Kerwin is a U.S. astronaut and physician who served as science pilot on Skylab 2, the first crewed mission to the first U.S. space station. Kerwin received his degree in medicine in 1957 from Northwestern University Medical School in Chicago, Illinois, after which he joined the U.S. Navy
- kerygma and catechesis (Christian theology)
kerygma and catechesis, in Christian theology, respectively, the initial proclamation of the gospel message and the oral instruction given before baptism to those who have accepted the message. Kerygma refers primarily to the preaching of the Apostles as recorded in the New Testament. Their message
- Kerygma and Myth (work by Bultmann)
Rudolf Bultmann: Bultmann’s theology: …title Kerygma und Mythos (Kerygma and Myth).
- Kerygma of Peter (Christian literature)
biblical literature: Apocalypses: …the Apostolic Constitutions), and the Kerygma of Peter, a favorite at Alexandria, as well as various gnostic works, such as The Dialogue of the Redeemer, Pistis Sophia (“Faith-Wisdom”), and the Sophia Jesu Christi (“Wisdom of Jesus Christ”). From the 5th century there is even a Testamentum Domini (“Testament of the…
- Kerygma und Mythos (work by Bultmann)
Rudolf Bultmann: Bultmann’s theology: …title Kerygma und Mythos (Kerygma and Myth).
- Kērykeion (staff)
caduceus, staff carried by Hermes, the messenger of the gods, as a symbol of peace. Among the ancient Greeks and Romans it became the badge of heralds and ambassadors, signifying their inviolability. Originally the caduceus was a rod or olive branch ending in two shoots and decorated with garlands
- kēryx (ancient Greek messenger)
kēryx, inviolable ancient Greek messenger. In Homer’s time the kēryx was simply a trusted attendant or retainer of a chieftain. The role of kērykes expanded, however, to include acting as inviolable messengers between states, even in time of war, proclaiming meetings of the council, popular
- kes (Sikh religious practice)
Sikhism: Guru Gobind Singh and the founding of the Khalsa: …wearing of the “Five Ks”—kes or kesh (uncut hair), kangha (comb), kachha (short trousers), kara (steel bracelet), and kirpan (ceremonial sword)—did not become an obligation of all Sikhs until the establishment of the Singh Sabha, a religious and educational reform movement of
- Kes (film by Loach [1970])
Ken Loach: …was followed by the poignant Kes (1970), about a boy, abused at home and school, who befriends a fledgling kestrel. That film received much acclaim, including a nomination for best picture at the British Academy Film Awards. Loach investigated similar themes of class and society in such films as Which…
- Kes-Dhari (Sikh religious group)
Sikhism: Other groups: One group, the Kes-Dhari, is composed of Sikhs who wear the kes, uncut hair, required as one of the Five Ks, and includes all those whom the popular view regards as Sikhs. Not all Kes-Dharis wear all of the Five Ks, but they will at least wear the…
- Kesari (Indian newspaper)
India: Origins of the nationalist movement: …Marathi journalist, whose vernacular newspaper, Kesari (“Lion”), became the leading literary thorn in the side of the British. The Lokamanya (“Revered by the People”), as Tilak came to be called after he was jailed for seditious writings in 1897, looked to orthodox Hinduism and Maratha history as his twin sources…
- Kesavasut (Indian poet)
South Asian arts: Marathi: …in Marathi poetry began with Kesavasut and was influenced by 19th-century British Romanticism and liberalism, European nationalism, and the greatness of the history of Mahārāshtra. Kesavasut declared a revolt against traditional Marathi poetry and started a school, lasting until 1920, that emphasized home and nature, the glorious past, and pure…
- Kesennuma (Japan)
Kesennuma, city, northeastern Miyagi ken (prefecture), northern Honshu, Japan. It lies about 70 miles (110 km) northeast of Sendai, the prefectural capital, on the deeply indented Pacific Ocean coast at the head of Kesennuma Bay, which shelters the city’s harbour and commercial fishing port.
- Kesey, Ken (American author)
Ken Kesey was an American writer who was a prominent figure of the countercultural revolution and the hippie movement of the 1960s. His best-known novel is One Flew over the Cuckoo’s Nest (1962), but he became equally famous for his psychedelic adventures as the leader of a roving band of acolytes
- Kesey, Ken Elton (American author)
Ken Kesey was an American writer who was a prominent figure of the countercultural revolution and the hippie movement of the 1960s. His best-known novel is One Flew over the Cuckoo’s Nest (1962), but he became equally famous for his psychedelic adventures as the leader of a roving band of acolytes
- Kesha (American singer)
Benny Blanco: Breakthrough and rise in the industry: …“Don’t,” and several singles by Kesha, including “Tik Tok,” “Your Love Is My Drug,” and “Die Young.” By 2013 he had been involved in making 13 singles that reached the Billboard Top 10, including six number one hits.
- Keshava Mishra (Indian philosopher)
Indian philosophy: The old school: …century; “The Charm of Nyaya”), Keshava Mishra’s Tarkabhasha ( c. 1275; “The Language of Reasoning”), Annam Bhatta’s Tarkasamgraha (c. 1623; “Compendium of Logic”), and Vishvanatha’s Bhashapariccheda (1634; “Determination of the Meaning of the Verses”).
- Keshedah (Afghanistan)
Afghanistan: Prehistory: Caves near Āq Kupruk yielded evidence of an early Neolithic (New Stone Age) culture (c. 9000–6000 bce) based on domesticated animals. Archaeological research since World War II has revealed Bronze Age sites, dating both before and after the Indus civilization of the 3rd to the 2nd millennium…
- Kështjella (novel by Kadare)
Ismail Kadare: …Albanian history are Kështjella (1970; The Castle or The Siege), a recounting of the armed resistance of the Albanian people against the Ottoman Turks in the 15th century, and Dimri i madh (1977; “The Great Winter”), which depicts the events that produced the break between Albania and the Soviet Union…
- kesi (Chinese tapestry)
kesi, Chinese silk tapestry woven in a pictorial design. The designation kesi, which means “cut silk,” derives from the visual illusion of cut threads that is created by distinct, unblended areas of colour. The earliest surviving examples of kesi date from the Tang dynasty (618–907), but it first
- Keskeskeck (borough, New York City, New York, United States)
Bronx, one of the five boroughs of New York City, southeastern New York, U.S., coextensive with Bronx county, formed in 1912. The Bronx is the northernmost of the city’s boroughs. It is separated from Manhattan (to the south and west) by the narrow Harlem River and is further bordered by
- keski (Sikhism)
Sikhism: Sects: …the command really stands for keski, which means a small turban that is normally worn under the main turban. In this group, men and women must wear this variety of turban. The group is strict in its beliefs, attaching great importance to kirtan, or the singing of hymns, and frequently…
- Kesri, Sitaram (Indian politician)
Indian National Congress: The party since 1991: …was succeeded as president by Sitaram Kesri, the party’s first non-Brahmin leader.
- Kesselring, Albert (German field marshal)
Albert Kesselring was a field marshal who, as German commander in chief, south, became one of Adolf Hitler’s top defensive strategists during World War II. The son of a town education officer, Kesselring joined the army as a cadet in 1904. After serving in World War I and remaining in the army
- Kesselschlacht (warfare concept and tactic)
blitzkrieg: Blitzkrieg in principle: …commence, using the concept of Kesselschlacht (“cauldron battle”). A frontal attack would immobilize the enemy while forces on the flanks would execute a double envelopment, forming a pocket called a Kessel (“cauldron”) around the enemy. Once surrounded, the opposing army, demoralized and with no chance of escape, would face the…
- Kessler syndrome (physics)
space debris: …a chain reaction (called the Kessler syndrome after American scientist Donald Kessler) in which the resulting space debris would destroy other satellites and so on, with low Earth orbit eventually becoming unusable. To forestall such a debris buildup, space agencies have begun taking steps to mitigate the problem, such as…
- Kessler, Donald (American astrophysicist)
space debris: …Kessler syndrome after American scientist Donald Kessler) in which the resulting space debris would destroy other satellites and so on, with low Earth orbit eventually becoming unusable. To forestall such a debris buildup, space agencies have begun taking steps to mitigate the problem, such as burning up all the fuel…
- Kessler, Ethel (American graphic designer)
graphic design: The digital revolution: …postage stamp from 1998, designers Ethel Kessler and Greg Berger digitally montaged John Singer Sargent’s portrait of Frederick Law Olmsted with a photograph of New York’s Central Park, a site plan, and botanical art to commemorate the landscape architect. Together these images evoke a rich expression of Olmsted’s life and…
- Kessler, George (American businessman)
Helen Keller International: In 1915 the American merchant George Kessler and his wife, Cora Parsons Kessler, organized in Paris the British, French, and Belgian Permanent Relief War Fund. George Kessler had been aboard the Lusitania when it was sunk by a German torpedo. As a survivor, he vowed to help veterans in some…
- Kessler, Harry, Count (German publisher)
typography: The private-press movement: …Cranach, conducted at Weimar by Count Harry Kessler. It produced editions of the classics and of German and English literature illustrated by artists such as Aristide Maillol, Eric Gill, and Gordon Craig and printed with types by Emery Walker and Edward Johnston on paper made by hand in France. Kessler’s…
- Kessler, Henry Howard (American surgeon)
Henry Howard Kessler was an American orthopedic surgeon and medical administrator who was instrumental in the development of rehabilitative services for people with physical disabilities. A graduate of Cornell University Medical School in 1919, Kessler was inspired to become an orthopedic surgeon
- Kessler, Mikkel (Danish boxer)
Joe Calzaghe: …a decision over Danish boxer Mikkel Kessler, adding Kessler’s World Boxing Council (WBC) and World Boxing Association (WBA) titles to his own WBO and IBF championships. Calzaghe made his American debut in April 2008, winning a split decision over former undisputed middleweight champion Bernard Hopkins. In November 2008 he won…
- Kesteven (division, England, United Kingdom)
Parts of Kesteven, formerly one of the three separately administered divisions of the historic county of Lincolnshire, England. It now forms two county districts: North Kesteven and South Kesteven. Both are part of the administrative county of Lincolnshire. They are profoundly rural in character;
- Kesteven, Parts of (division, England, United Kingdom)
Parts of Kesteven, formerly one of the three separately administered divisions of the historic county of Lincolnshire, England. It now forms two county districts: North Kesteven and South Kesteven. Both are part of the administrative county of Lincolnshire. They are profoundly rural in character;
- Kestner, Charlotte Buff (wife of Kestner)
Charlotte von Stein: …by Goethe’s earlier attachment to Charlotte Buff.
- kestrel (bird)
kestrel, any of several small birds of prey of the genus Falco (family Falconidae) known for their habit of hovering while hunting. Kestrels prey on large insects, birds, and small mammals. They exhibit sexual colour dimorphism, rare among hawks: the male is the more colourful. Kestrels are mainly
- Kęstutis (duke of Lithuania)
Kęstutis was the grand duke of Lithuania (1381–82) who defended his country’s western borders against the Teutonic Knights. Kęstutis was one of the seven sons of Gediminas, the grand duke of Lithuania (reigned 1316–41), who had built that nation into a powerful east European empire. Kęstutis fought
- Keswick (England, United Kingdom)
Keswick, town (parish), Allerdale district, administrative county of Cumbria, historic county of Cumberland, northwestern England. It lies at the north end of the Derwent Water (lake), below the peak of Skiddaw. Keswick is the main transportation focus, tourist resort, and shopping centre of the
- Keszthely (Hungary)
Lake Balaton: …in the extensive reedbeds near Keszthely, where rare water birds nest. The southern border of the lake is very fertile, and the volcanic soils to the northwest form the basis of a noted wine-growing region.
- Ket (people)
Ket, indigenous people of central Siberia who live in the Yenisey River basin; in the late 20th century they numbered about 500. Certain traits of the Ket suggest a southerly origin. Their language, Ket, is the last true survivor of the Yeniseian group spoken in the area. Usually classed as
- Ket language
Ket language, one of two surviving members of the Yeniseian family of languages spoken by about 500 people living in central Siberia. (The other, a moribund close relative called Yug [Yugh], or Sym, is sometimes considered a dialect of Ket.) The Yeniseian languages are not known to be related to
- Ket River (river, Russia)
Ob River: Physiography: …the Parabel (both left), the Ket (right), the Vasyugan (left), and the Tym and Vakh rivers (both right). Down to the Vasyugan confluence the river passes through the southern belt of the taiga, thereafter entering the middle belt. Below the Vakh confluence the middle Ob changes its course from northwesterly…
- Ket’s Rebellion (England)
Robert Ket: …which was afterwards known as Ket’s Rebellion. He was either a tanner or, more probably, a small landowner.
- Ket, Robert (English rebel)
Robert Ket was an English leader of the Norfolk rising of 1549, which was afterwards known as Ket’s Rebellion. He was either a tanner or, more probably, a small landowner. The rising seems to have originated in a quarrel between the people of Wymondham, in Norfolk, and a certain Flowerdew and was
- Keta (Ghana)
Keta, town, southeastern Ghana. It lies on the Gulf of Guinea of the Atlantic Ocean, near the mouth of the Volta River. It is built on a sandspit separating the Atlantic from the Keta Lagoon. Before the arrival of Europeans in the 15th century, the area was part of the African kingdom of Anlo. The
- ketamine (drug)
ketamine, general anesthetic agent related structurally to the hallucinogen phencyclidine (PCP). Ketamine was first synthesized in 1962 at Parke Davis Laboratories by American scientist Calvin Stevens, who was searching for a new anesthetic to replace PCP, which was not suitable for use in humans
- Ketch, Jack (English executioner)
Jack Ketch was an English executioner notorious for his barbarous inefficiency; for nearly two centuries after his death his nickname was popularly applied to all of England’s executioners. Ketch is believed to have received his appointment as public hangman in 1663. The first recorded mention of
- Ketch, John (English executioner)
Jack Ketch was an English executioner notorious for his barbarous inefficiency; for nearly two centuries after his death his nickname was popularly applied to all of England’s executioners. Ketch is believed to have received his appointment as public hangman in 1663. The first recorded mention of
- Ketchel, Stanley (American boxer)
Stanley Ketchel was an American professional boxer, considered by some boxing historians to be the greatest fighter in the history of the middleweight division. (Read Gene Tunney’s 1929 Britannica essay on boxing.) Upon the death of his parents, Ketchel left Michigan and began riding boxcars to the
- Ketchikan (Alaska, United States)
Ketchikan, city, port of entry, southeastern Alaska, U.S. Situated on southwestern Revillagigedo Island and part of the Alexander Archipelago, it lies 235 miles (380 km) south of Juneau. The site was originally a fishing settlement for the Tongass and Cape Fox Tlingit Indians, who named a creek in
- ketchubah (Judaism)
ketubba, formal Jewish marriage contract written in Aramaic and guaranteeing a bride certain future rights before her marriage. Since Jewish religious law permits a man to divorce his wife at any time for any reason, the ketubba was introduced in ancient times to protect a woman’s rights and to
- ketchup (condiment)
ketchup, seasoned pureed condiment widely used in the United States and Great Britain. The origin of the word ketchup is not entirely clear; the word likely derives from the Chinese ke-tsiap, a fish brine, probably by way of the Malaysian ketjap. The Heinz company first began selling its famed
- Keteleeria (tree genus)
Keteleeria, genus in the family Pinaceae, containing three to seven species of coniferous evergreen trees, native to Southeast Asia. The trees resemble true firs (members of the genus Abies) but have clusters of 5 to 10 male reproductive structures on short, scaly stalks; spine-tipped leaves on
- ketene (chemical compound)
ketene, any of a class of organic compounds containing the functional grouping C=C=O; the most important member of the class being ketene itself, CH2=C=O, which is used in the manufacture of acetic anhydride and other industrial organic chemicals. The name suggests that ketenes are unsaturated
- Keter malkut (work by Ibn Gabirol)
Ibn Gabirol: Poetry: …famed rhymed prose poem “Keter malkhut” (“The Crown of the Kingdom”), a meditation stating the measurements of the spheres of the universe, jolts the reader into the abject feeling of his smallness but, subsequently, builds him up by a proclamation of the divine grace.
- Keter Torah (work by Aaron ben Elijah)
Aaron ben Elijah: The third book, Keter Torah (1362; “Crown of Law”), is a commentary on the Pentateuch, based on literal interpretations of the text.
- ketjak (dance)
Southeast Asian arts: Balinese dance-drama: In the ketjak, or monkey dance, as many as 150 village men, sitting in concentric circles around a flaming lamp, chant and gesticulate in unison until, in trance, they appear to have become ecstatically possessed by the spirits of monkeys. This performance, however, has no ritual function…
- ketjap ikan (seasoning)
fish sauce, in Southeast Asian cookery, a liquid seasoning prepared by fermenting freshwater or saltwater fish with salt in large vats. After a few months time the resulting brownish, protein-rich liquid is drawn off and bottled. It is sometimes allowed to mature in the sun in glass or earthenware
- Ketmen Range (mountains, Asia)
Tien Shan: Physiography: …(6,811 metres), and the isolated Ketpen (Ketmen) Range, which rises to an elevation of 11,936 feet (3,474 metres) in the central part of the depression.
- keto acid (chemistry)
carboxylic acid: Hydroxy and keto acids: The 2-, 3-, 4-, and 5-hydroxycarboxylic acids all lose water upon heating, although the products are not the same. The 2-hydroxy acids form cyclic dimeric esters (formed by the esterification of two molecules of the acid) called lactides, whereas the 3- and 4-hydroxy…
- keto diet
ketogenic diet, dietary regime that eliminates or severely limits carbohydrates in favour of proteins and fats as a stimulus for weight loss. Ketosis is a metabolic condition in which the human body uses ketones, chemical compounds produced by amino acids such as leucine and tyrosine, in place of
- keto form (chemistry)
acid–base reaction: Keto–enol tautomerism, acid- and base-catalyzed: Acids and bases both bring about the establishment of an equilibrium between ketones (or aldehydes) and their enol forms, which contain a hydroxyl group directly attached to a doubly bonded carbon atom:
- keto-enol tautomerism (chemistry)
acid–base reaction: Keto–enol tautomerism, acid- and base-catalyzed: Acids and bases both bring about the establishment of an equilibrium between ketones (or aldehydes) and their enol forms, which contain a hydroxyl group directly attached to a doubly bonded carbon atom:
- ketoacidosis (metabolic condition)
diabetes mellitus: Treatment: Untreated diabetes leads to ketoacidosis, the accumulation of ketones (products of fat breakdown) and acid in the blood. Continued buildup of these products of disordered carbohydrate and fat metabolism result in nausea and vomiting, and eventually the patient goes into a diabetic coma.
- β-ketoacyl coenzyme A (enzyme)
metabolism: Fragmentation of fatty acyl coenzyme A molecules: The product is called a β-ketoacyl coenzyme A.
- β-ketoacyl-ACP reductase (enzyme)
metabolism: Fatty acids: …the reaction is catalyzed by β-ketoacyl-ACP reductase. Reduced NADP+ is the electron donor, however, and not reduced NAD+ (which would participate in the reversal of reaction [24]). NADP− is thus a product in [65].
- β-ketoacyl-ACP synthetase (enzyme)
metabolism: Fatty acids: …in a reaction catalyzed by β-ketoacyl-ACP synthetase so that the acetyl moiety (CH3CO―) is transferred to the malonyl moiety (−OOCH2CO―). Simultaneously, the carbon dioxide fixed in step [62] is lost, leaving as a product a four-carbon moiety attached to ACP and called acetoacetyl-S-ACP (reaction [64]).
- ketoconazole (drug)
ketoconazole, antifungal drug used to treat skin and bodily infections caused by various types of fungi. Ketoconazole mainly targets yeasts, such as Candida, which infect the skin, and dermatophytes, such as species of Trichophyton and Microsporum, which infect keratinized tissues, such as skin,
- Ketoff, Paolo (Italian engineer)
electronic instrument: The electronic music synthesizer: …built by the Italian engineer Paolo Ketoff in 1962, was designed for live performance of experimental music. It had three small, closely spaced, touch-sensitive keyboards, each of which controlled a single tone. Its foremost exponent was John Eaton, who concertized widely on his Synket throughout the 1960s and ’70s, performing…
- ketogenic diet
ketogenic diet, dietary regime that eliminates or severely limits carbohydrates in favour of proteins and fats as a stimulus for weight loss. Ketosis is a metabolic condition in which the human body uses ketones, chemical compounds produced by amino acids such as leucine and tyrosine, in place of
- ketone (chemical compound)
ketone, any of a class of organic compounds characterized by the presence of a carbonyl group in which the carbon atom is covalently bonded to an oxygen atom. The remaining two bonds are to other carbon atoms or hydrocarbon radicals (R): Ketone compounds have important physiological properties.
- Ketoprak (drama)
Southeast Asian arts: Ketoprak and ludruk: Two other types of popular theatre, ketoprak and ludruk, were performed in Java by 150 to 200 professional troupes. Ketoprak, created by a Surakarta court official in 1914, evolved into a spoken drama of Javanese and Islamic history in which the clown…
- ketosis (pathology)
ketosis, metabolic disorder marked by high levels of ketones in the tissues and body fluids, including blood and urine. With starvation or fasting, there is less sugar than normal in the blood and less glycogen (the storage form of sugar) in the cells of the body, especially the liver cells; fat
- Kétou plateau (plateau, Benin)
Benin: Relief: …750 feet high, and the Kétou plateau is up to 500 feet in height.
- ketoxime (chemical compound)
amine: Occurrence and sources of amines: …Beckmann rearrangement, by which a ketoxime, R2C=NOH, is rearranged to an amide, RCONHR, can be used to prepare primary amines when followed by hydrolysis.
- Ketpen Range (mountains, Asia)
Tien Shan: Physiography: …(6,811 metres), and the isolated Ketpen (Ketmen) Range, which rises to an elevation of 11,936 feet (3,474 metres) in the central part of the depression.
- Kett, Robert (English rebel)
Robert Ket was an English leader of the Norfolk rising of 1549, which was afterwards known as Ket’s Rebellion. He was either a tanner or, more probably, a small landowner. The rising seems to have originated in a quarrel between the people of Wymondham, in Norfolk, and a certain Flowerdew and was