20-letter words containing l, c, f
- 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.
- 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.
- fontainebleau school — a group of artists, many of them Italian and Flemish, who worked on the decorations of the palace of Fontainebleau in the 16th century.
- for sb's delectation — If you do something for someone's delectation, you do it to give them enjoyment or pleasure.
- force-field analysis — a decision-making technique, often presented graphically, that identifies all the positive and negative forces impinging on a problem
- four-colour glossies — 1. Literature created by marketroids that allegedly contains technical specs but which is in fact as superficial as possible without being totally content-free. "Forget the four-colour glossies, give me the tech ref manuals." Often applied as an indication of superficiality even when the material is printed on ordinary paper in black and white. Four-colour-glossy manuals are *never* useful for finding a problem. 2. [rare] Applied by extension to manual pages that don't contain enough information to diagnose why the program doesn't produce the expected or desired output.
- 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
- frederick william ii — 1744–97, king of Prussia 1786–97.
- frederick william iv — 1795–1861, king of Prussia 1840–61 (brother of William I of Prussia).
- freefall parachuting — a variety of parachuting in which the jumper manoeuvres in free fall before opening the parachute
- frequency modulation — FM.
- friedrich max müller — Friedrich Max [free-drik maks;; German free-drikh mahks] /ˈfri drɪk mæks;; German ˈfri drɪx mɑks/ (Show IPA), 1823–1900, English Sanskrit scholar and philologist born in Germany.
- frontenac et palluau — Comte de (Louis de Buade) 1620?–98, French governor of New France 1672–82, 1689–98.
- fully-fitted kitchen — a kitchen fitted with units and appliances such as an oven, dishwasher, etc
- fulminate of mercury — a gray, crystalline solid, Hg(CNO) 2 , used chiefly in the manufacture of commercial and military detonators.
- fulminating compound — a fulminate.
- fuming sulfuric acid — an oily, hygroscopic, corrosive liquid, H 2 S 2 O 7 , that, depending on purity, is colorless or dark brown: used chiefly as a dehydrating agent in the manufacture of explosives and as a sulfating or sulfonating agent in the manufacture of dyes.
- function application — A function applied to (some of) its arguments. If it is not applied to all its argument then it is a "partial application". Application is usually written in the form f(x) but some languages such as command-line interpreters and many functional languages use juxtaposition: f x. Lisp places the parentheses around the whole application: (f x).
- 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).
- gaff-topsail catfish — a sea catfish, Bagre marinus, occurring in the Atlantic and the Gulf of Mexico from Cape Cod to Panama, and having the spine of the dorsal fin greatly prolonged and flattened.
- genetically modified — biologically altered
- group life insurance — a form of life insurance available to members of a group, typically employees of a company, under a master policy.
- hydraulic fracturing — a process in which fractures in rocks below the earth's surface are opened and widened by injecting chemicals and liquids at high pressure: used especially to extract natural gas or oil.
- in a class by itself — unique
- in flagrante delicto — Law. in the very act of committing the offense.
- intelligence officer — a military officer responsible for collecting and processing data on hostile forces, weather, and terrain.
- joint life insurance — life insurance covering two or more persons, the benefits of which are paid after the first person dies.
- joule-thomson effect — the change of temperature that a gas exhibits during a throttling process, shown by passing the gas through a small aperture or porous plug into a region of low pressure.
- justifiable homicide — murder committed under extenuating circumstances
- kill the fatted calf — the young of the domestic cow or other bovine animal.
- la canada-flintridge — a town in SW California.
- lafayette escadrille — a contingent of American aviators who in 1916 served as volunteers (Escadrille Américaine) in the French air force and in 1918 became the 103rd Pursuit Squadron of the U.S. Army.
- land-office business — a lively, booming, expanding, or very profitable business.
- last of the mohicans — a historical novel (1826) by James Fenimore Cooper.
- law of contradiction — the law that a proposition cannot be both true and false or that a thing cannot both have and not have a given property.
- life-support machine — A life-support machine is the equipment that is used to keep a person alive when they are very ill and cannot breathe without help.
- lifetime achievement — the notable successes that someone achieves during their life
- lighthouse coffeepot — a coffeepot of the late 17th and 18th centuries, having a tapering, circular body with a domed lid.
- like a ton of bricks — (used esp of the manner of punishing or reprimanding someone) with great force; severely
- liquidity preference — (in Keynesian economics) the degree of individual preference for cash over less liquid assets.
- logarithmic function — a function defined by y = log bx, especially when the base, b, is equal to e, the base of natural logarithms.
- lost property office — room for mislaid objects
- madwoman of chaillot — a satirical comedy (1945) by Jean Giraudoux.
- margaret of scotland — Saint. 1045–93, queen consort of Malcolm III of Scotland. Her piety and benefactions to the church led to her canonization (1250). Feast days: June 10, Nov 16
- member of the public — a member of the general population