20-letter words containing d, a, t
- faculty of advocates — the college or society of advocates in Scotland
- fair-trade agreement — an agreement or contract between a manufacturer and a retailer to sell a branded or trademarked product at no less than a specific price: legally prohibited after 1975.
- fast-breeder reactor — a breeder reactor in which there is no moderator and fission is caused by high-energy neutrons.
- 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
- fight tooth and nail — fight fiercely
- 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.
- 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
- five-a-side football — a version of soccer with five players in each team
- fixed action pattern — a highly stereotyped pattern of behavior that is characteristic of a particular species.
- fixed penalty (fine) — a fine of a fixed amount of money for a particular offence
- fixed-price contract — a contract in which the price is preset and invariable, regardless of the actual costs of production.
- fixed-rate financing — a loan system in which the amount paid back does not fluctuate according to interest rated
- flight data recorder — a recording device that records relevant data during an aircraft's flight
- 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 sb's delectation — If you do something for someone's delectation, you do it to give them enjoyment or pleasure.
- 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).
- fort george g. meade — a military reservation in central Maryland, SW of Baltimore.
- 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.
- 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.
- fulminating compound — a fulminate.
- fundamental constant — a physical constant, such as the gravitational constant or speed of light, that plays a fundamental role in physics and chemistry and usually has an accurately known value
- fundamental particle — elementary particle.
- fundamental research — research carried out to deepen understanding of the fundamental or basic principles of something
- fundamental sequence — an infinite sequence, x 1 , x 2 , …, whose terms are points in Ek, in which there exists a point y such that the limit as n goes to infinity of xn = y if and only if for every ε>0, there exists a number N such that i > N and j > N implies | xi − xj |< ε. Also called Cauchy sequence, convergent sequence. Compare complete (def 10b).
- gastroduodenostomies — Plural form of gastroduodenostomy.
- general headquarters — the headquarters of the commanding officer of a large military force. Abbreviation: GHQ, G.H.Q.
- genetically modified — biologically altered
- get ahold of oneself — If you get ahold of yourself, you force yourself to become calm and sensible after a shock or in a difficult situation.
- get away with murder — Law. the killing of another human being under conditions specifically covered in law. In the U.S., special statutory definitions include murder committed with malice aforethought, characterized by deliberation or premeditation or occurring during the commission of another serious crime, as robbery or arson (first-degree murder) and murder by intent but without deliberation or premeditation (second-degree murder)
- girdle-tailed lizard — any African lizard of the family Cordylidae, having a spiny tail used in defense.
- give a wide berth to — to keep clear of; avoid
- go from bad to worse — worsen
- go to someone's head — to confuse, excite, or intoxicate someone
- grade school teacher — a teacher in a grade school
- grand right and left — a figure called in square dancing in which partners face each other, forming a small circle, and then advance around the circle by extending alternating right and left hands to pull past each new person until they reach their partners again.
- grand unified theory — a possible future quantum field theory that would encompass both the electroweak theory and quantum chromodynamics. Abbreviation: GUT.
- gravitational radius — Schwarzschild radius.
- great dividing range — a mountain range extending along the E coast of Australia: vast watershed region. 100 to 200 miles (160–320 km) wide.
- great northern diver — a large northern bird, Gavia immer, with a black-and-white chequered back and a black head and neck in summer: family Gaviidae (divers)
- great-great-grandson — the grandson of a grandchild
- greatest lower bound — a lower bound that is greater than or equal to all the lower bounds of a given set: 1 is the greatest lower bound of the set consisting of 1, 2, 3. Abbreviation: glb.
- guided visualization — a relaxation technique in which words, sounds, etc., are used to evoke positive mental images, feelings, and thoughts.
- guillaume de machaut — Guillaume de [French gee-yohm duh] /French giˈyoʊm də/ (Show IPA), Guillaume de Machaut.
- happy hunting ground — the North American Indian heaven, conceived of as a paradise of hunting and feasting for warriors and hunters.