20-letter words containing o, t, f, r
- feather in one's cap — one of the horny structures forming the principal covering of birds, consisting typically of a hard, tubular portion attached to the body and tapering into a thinner, stemlike portion bearing a series of slender, barbed processes that interlock to form a flat structure on each side.
- federal constitution — Constitution of the United States.
- federal reserve note — a form of paper money issued by a Federal Reserve Bank.
- federation of malaya — a federation of the nine Malay States of the Malay Peninsula and two of the Straits Settlements (Malacca and Penang): formed in 1948: became part of the British Commonwealth in 1957 and joined Malaysia in 1963
- fermentation alcohol — alcohol (def 1).
- fermentation-alcohol — Also called ethyl alcohol, grain alcohol, ethanol, fermentation alcohol. a colorless, limpid, volatile, flammable, water-miscible liquid, C 2 H 5 OH, having an etherlike odor and pungent, burning taste, the intoxicating principle of fermented liquors, produced by yeast fermentation of certain carbohydrates, as grains, molasses, starch, or sugar, or obtained synthetically by hydration of ethylene or as a by-product of certain hydrocarbon syntheses: used chiefly as a solvent in the extraction of specific substances, in beverages, medicines, organic synthesis, lotions, tonics, colognes, rubbing compounds, as an automobile radiator antifreeze, and as a rocket fuel. Compare denatured alcohol, methyl alcohol.
- fight for one's life — Someone who is fighting for their life is making a great effort to stay alive, either when they are being physically attacked or when they are very ill.
- file descriptor leak — (programming) (Or "fd leak" /F D leek/) A kind of programming bug analogous to a core leak, in which a program fails to close file descriptors ("fd"s) after file operations are completed, and thus eventually runs out of them. See leak.
- financial controller — a senior executive in usually commercial organization who is in charge of financial affairs and oversees such things as the preparation of budgets and accounts
- first earl of cromer — 1st Earl of, Evelyn Baring.
- first point of aries — the vernal equinox.
- first world problems — If you say that someone has First World problems, you mean that their problems are not really very important.
- first-person shooter — a type of video game in which the player assumes the field of vision of the protagonist, so that the game camera includes the character's weapon, but the rest of the character model is not seen. Abbreviation: FPS.
- fission-track dating — the dating of samples of minerals by comparing the tracks in them by fission fragments of the uranium nuclei they contain, before and after irradiation by neutrons
- fixed action pattern — a highly stereotyped pattern of behavior that is characteristic of a particular species.
- fixed-price contract — a contract in which the price is preset and invariable, regardless of the actual costs of production.
- flat-plate collector — a type of solar collector consisting of a series of flat glass or plastic plates with black metal surfaces that absorb solar energy.
- flavour of the month — If you think that something or someone is very popular at a particular time, you can say that they are flavour of the month.
- flight data recorder — a recording device that records relevant data during an aircraft's flight
- floodlight projector — a powerful lamp having a reflector curved to produce a floodlight.
- florence nightingale — Florence ("the Lady with the Lamp") 1820–1910, English nurse: reformer of hospital conditions and procedures; reorganizer of nurse's training programs.
- fold-and-thrust belt — a linear or arcuate region of the earth's surface that has been subjected to severe folding and thrust faulting
- for all one is worth — good or important enough to justify (what is specified): advice worth taking; a place worth visiting.
- for better for worse — whatever the subsequent events or changes may be
- for future reference — If you keep information for future reference, you keep it because it might be useful in the future.
- for sb's consumption — If you do or say something for a particular person's or group's consumption, you do or say it especially for them, although your private thoughts or plans may be very different.
- for sb's delectation — If you do something for someone's delectation, you do it to give them enjoyment or pleasure.
- for the rest of them — for The Rest Of Us
- for the sake of sthg — If you do something for the sake of something, you do it for that purpose or in order to achieve that result. You can also say that you do it for something's sake.
- for your information — (FYI) A subseries of RFCs that are not technical standards or descriptions of protocols. FYIs convey general information about topics related to TCP/IP or the Internet. See also STD.
- forbidden transition — an electronic transition in an atom, molecule, etc, that is not permitted by electric dipole selection rules
- fore-and-aft topsail — gaff topsail (def 1).
- fore-topgallant mast — the spar or section of a spar forming the topgallant portion of a foremast on a ship.
- formative assessment — ongoing assessment of a pupil's educational development within a particular subject area
- fort george g. meade — a military reservation in central Maryland, SW of Baltimore.
- forty-ninth parallel — an informal name for the Canadian border with the USA, which is in part delineated by the parallel line of latitude at 49°N
- fourteenth amendment — an amendment to the U.S. Constitution, ratified in 1868, defining national citizenship and forbidding the states to restrict the basic rights of citizens or other persons.
- fourth international — a loose federation of small groups of radical socialists formed in 1936 under the leadership of Leon Trotsky and hostile to the Soviet Union. Compare international (def 6).
- fractionating column — a long vertical cylinder used in fractional distillation, in which internal reflux enables separation of high and low boiling fractions to take place
- frankfurt horizontal — Craniometry. the plane established when right and left poria and left orbitale are in the same horizontal plane.
- freedom of the press — the right to publish newspapers, magazines, and other printed matter without governmental restriction and subject only to the laws of libel, obscenity, sedition, etc.
- freight pass-through — a special allowance or discounted price given a bookseller or bookstore by a publishing house for paying the freight charge on a shipment of books ordered: so called because the shipping charge is passed on to the consumer by an increase in the suggested retail price for each book. Abbreviation: FPT.
- frequency modulation — FM.
- fridtjof nansen land — Franz Josef Land.
- friends of the earth — an organization of environmentalists and conservationists whose aim is to promote the sustainable use of the earth's resources
- front-end volatility — Front-end volatility is the ability of the fractions with lower boiling points, such as butane, to evaporate at normal temperatures.
- front-to-back engine — an engine in which the crankshaft is arranged front to back along the axis of the vehicle
- frontenac et palluau — Comte de (Louis de Buade) 1620?–98, French governor of New France 1672–82, 1689–98.
- frosting on the cake — a sweet mixture, cooked or uncooked, for coating or filling cakes, cookies, and the like; icing.
- fulminate of mercury — a gray, crystalline solid, Hg(CNO) 2 , used chiefly in the manufacture of commercial and military detonators.