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20-letter words containing a, f, r, c

  • 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
  • flame-fusion process — Verneuil process.
  • 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
  • florence nightingale — Florence ("the Lady with the Lamp") 1820–1910, English nurse: reformer of hospital conditions and procedures; reorganizer of nurse's training programs.
  • for sb's delectation — If you do something for someone's delectation, you do it to give them enjoyment or pleasure.
  • force someone's hand — to force someone to act
  • force-field analysis — a decision-making technique, often presented graphically, that identifies all the positive and negative forces impinging on a problem
  • 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
  • frame check sequence — (communications)   (FCS) The extra characters added to a frame for error detection and correction(?). FCS is used in X.25, HDLC, Frame Relay, and other data link layer protocols.
  • frederick barbarossa — ("Frederick Barbarossa") 1123?–90, king of Germany 1152–90; king of Italy 1152–90: emperor of the Holy Roman Empire 1152–90.
  • 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.
  • friar minor capuchin — capuchin (def 4).
  • 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.
  • 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.
  • 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.
  • fundamental particle — elementary particle.
  • fundamental research — research carried out to deepen understanding of the fundamental or basic principles of something
  • group life insurance — a form of life insurance available to members of a group, typically employees of a company, under a master policy.
  • hurricane-force wind — a wind, not necessarily a hurricane, having a speed of more than 72 miles per hour (32 m/sec): the strongest of the winds.
  • 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 flagrante delicto — Law. in the very act of committing the offense.
  • information exchange — discussion that involves exchanging ideas and knowledge
  • interference pattern — a series of alternating dark and bright bands produced as a result of light interference.
  • isochronous transfer — isochronous
  • joint life insurance — life insurance covering two or more persons, the benefits of which are paid after the first person dies.
  • keep a straight face — look serious, avoid smiling
  • knock the tar out of — any of various dark-colored viscid products obtained by the destructive distillation of certain organic substances, as coal or wood.
  • 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.
  • 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.
  • like a ton of bricks — (used esp of the manner of punishing or reprimanding someone) with great force; severely
  • logarithmic function — a function defined by y = log bx, especially when the base, b, is equal to e, the base of natural logarithms.
  • magnification factor — the size of a magnified image of an object divided by the size of the object itself
  • make a/no difference — If something makes a difference or makes a lot of difference, it affects you and helps you in what you are doing. If something makes no difference, it does not have any effect on what you are doing.
  • manufacturer's agent — an agent representing one or more manufacturers in selling related but noncompeting goods, usually on a commission basis and in a particular territory.
  • 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
  • marriage certificate — official document recording a marriage
  • mary, queen of scots — family name Stuart. 1542–87, queen of Scotland (1542–67); daughter of James V of Scotland and Mary of Guise. She was married to Francis II of France (1558–60), her cousin Lord Darnley (1565–67), and the Earl of Bothwell (1567–71), who was commonly regarded as Darnley's murderer. She was forced to abdicate in favour of her son (later James VI of Scotland) and fled to England. Imprisoned by Elizabeth I until 1587, she was beheaded for plotting against the English crown
  • master of ceremonies — a person who directs the entertainment at a party, dinner, nightclub, radio or television broadcast, or the like, acting as host and introducing the speakers or performers. Abbreviation: M.C., MC.
  • methyl chloroformate — a colorless liquid, C 2 H 3 ClO 2 , used chiefly in organic synthesis.
  • mitral insufficiency — abnormal closure of the mitral valve resulting in regurgitation of blood into the atrium and leading to reduced heart function or heart failure.
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