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f US English

Farad

F1 US English

The sixth letter of the alphabet

F2 US English

Fahrenheit

f/ US English

F-number

f in frequency US English

The rate at which a vibration occurs that constitutes a wave, either in a material (as in sound waves), or in an electromagnetic field (as in radio waves and light), usually measured per second

fluorine US English

The chemical element of atomic number 9, a poisonous pale yellow gas of the halogen series. It is the most reactive of all the elements, causing severe burns on contact with skin

F in fluorine US English

The chemical element of atomic number 9, a poisonous pale yellow gas of the halogen series. It is the most reactive of all the elements, causing severe burns on contact with skin

F US English

The sixth letter of the alphabet

f in F1 US English

The sixth letter of the alphabet

F in F1 US English

The fourth note of the diatonic scale of C major

Fahrenheit US English

Of or denoting a scale of temperature on which water freezes at 32° and boils at 212° under standard conditions

F in Fahrenheit US English

Of or denoting a scale of temperature on which water freezes at 32° and boils at 212° under standard conditions

farad US English

The SI unit of electrical capacitance, equal to the capacitance of a capacitor in which one coulomb of charge causes a potential difference of one volt

F in farad US English

The SI unit of electrical capacitance, equal to the capacitance of a capacitor in which one coulomb of charge causes a potential difference of one volt

faraday US English

A unit of electric charge equal to Faraday’s constant

F in faraday US English

A unit of electric charge equal to Faraday’s constant

F. in strawberry US English

The low-growing plant that produces the strawberry, having white flowers, lobed leaves, and runners, and found throughout north temperate regions

n/f US English

No funds

F-bomb US English

Used as a euphemism for the word “fuck”, with reference to the latter’s taboo status and potential to shock or offend

f-hole US English

Either of a pair of sound holes resembling an ∫ and a reversed ∫ in shape, cut in the front of musical instruments of the violin family and some other stringed instruments such as semi-acoustic electric guitars and mandolins

F-word US English

Used as a euphemism for the word “fuck” because of the latter’s taboo status

f. sp. US English

A taxonomic category, especially of fungi, below that of species and defined by physiological characteristics, especially as they affect pathogenicity. The abbreviation is used in binomial names, between the species name and a special qualifier

f-stop US English

A camera setting corresponding to a particular f-number

F layer US English

The highest and most strongly ionized region of the ionosphere

f-number US English

The ratio of the focal length of a camera lens to the diameter of the aperture being used for a particular shot (e.g., f8, indicating that the focal length is eight times the diameter)

F's in F1 US English

The sixth letter of the alphabet

Leavis, F. R. US English

(1895–1978), English literary critic; full name Frank Raymond Leavis. Founder and editor of the quarterly Scrutiny (1932–53), he emphasized the value of critical study of English literature to preserving cultural continuity. Notable works: The Great Tradition (1948)

Skinner, B. F. US English

(1904–90), US behaviorist psychologist; full name Burrhus Frederic Skinner. He promoted the view that the proper aim of psychology should be to predict behavior and hence be able to control it. He applied the results of his studies to the development of programmed learning and to educational practice

Murnau, F. W. US English

(1888–1931), German film director; born Frederick Wilhelm Plumpe. His revolutionary use of cinematic techniques to record and interpret human emotion paralleled the expressionist movement in art and drama. Notable films: Nosferatu (1922), Der letzte Mann (1924), and Sunrise (1927), which won three Oscars

de Klerk, F. W. US English

(1936-), South African statesman; state president 1989–94; full name Frederik Willem de Klerk. As president, he freed Nelson Mandela in 1990, lifted the ban on membership in the African National Congress (ANC), and opened the negotiations that led to the first democratic elections in 1994. Nobel Peace Prize (1993), shared with Mandela

Schumacher, E. F. US English

(1911–77), German economist and conservationist; full name Ernst Friedrich Schumacher. His Small is Beautiful: Economics as if People Mattered (1973) argues that mass production needs to be replaced by smaller, more energy-efficient enterprises

Will, George F. US English

(1941-), US journalist, columnist, and television commentator. His conservative syndicated newspaper column first appeared in The Washington Post. He also wrote a column for Newsweek magazine from 1976, and appeared on television’s This Week

Zanuck, Darryl F. US English

(1902–79), US movie producer; full name Darryl Francis Zanuck. He was the controlling executive of Twentieth Century Fox and its president from 1965 until his retirement in 1971

Klerk, F. W. de US English

see de Klerk, F. W.

Buckley, William F. US English

(1925–2008), US journalist and writer; full name William Frank Buckley, Jr. Founder of the conservative magazine National Review (1955), he hosted the television discussion program Firing Line 1966–99

Fitzgerald, F. Scott US English

(1896–1940), US novelist; full name Francis Scott Key Fitzgerald. His novels, in particular The Great Gatsby (1925), provide a vivid portrait of the US during the jazz era of the 1920s. Fitzgerald later became part of an affluent and fashionable set living on the French Riviera; their lifestyle is reflected in Tender is the Night (1934), a semiautobiographical novel

FIL US English

A person’s father-in-law

F. rufus in hornero US English

A tropical American bird of the ovenbird family, often building its ovenlike mud nest on the top of a fence post

F. atra in coot US English

An aquatic bird of the rail family, with blackish plumage, lobed feet, and a bill that extends back onto the forehead as a horny shield

F. aurata in golden cat US English

A small forest-dwelling cat found in Africa and Asia

F. americana in ash2 US English

A tree with silver-gray bark and compound leaves. The ash is widely distributed throughout north temperate regions where it can form forests

F. excelsior in ash2 US English

A tree with silver-gray bark and compound leaves. The ash is widely distributed throughout north temperate regions where it can form forests

F. subbuteo in hobby2 US English

A migratory Old World falcon with long narrow wings, catching dragonflies and birds on the wing

F. glacialis in fulmar US English

A gull-sized gray and white seabird of the petrel family, with a stocky body and tubular nostrils

F. sylvatica in beech US English

A large tree with smooth gray bark, glossy leaves, and hard, pale, fine-grained timber. Its fruit, the beechnut, is an important food for numerous wild birds and mammals

F. temmincki in golden cat US English

A small forest-dwelling cat found in Africa and Asia

F. coelebs in chaffinch US English

A Eurasian and North African finch, typically with a bluish top to the head and dark wings and tail

F. pennanti in palm squirrel US English

An Old World squirrel that frequents palm trees, especially a tree squirrel with a striped back and a shrill, birdlike call

F. arctica in puffin US English

A hole-nesting auk (seabird) of northern and Arctic waters, with a large head and a massive, brightly colored triangular bill

F. escambiae in topminnow US English

A small surface-swimming fish related to the killifishes, found in fresh, brackish, and salt water throughout North America


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