21-letter words containing f, a, i, r

road traffic accident — an accident involving vehicles
rutherford scattering — the scattering of an alpha particle through a large angle with respect to the original direction of motion of the particle, caused by an atom (Rutherford atom) with most of the mass and all of the positive electric charge concentrated at a center or nucleus.
saint-maur-des-fosses — a town in N central France, near Paris, on the Marne River.
saponification number — the number of milligrams of potassium hydroxide required to saponify one gram of a given ester, especially a glyceride.
satisficing behaviour — the form of behaviour demonstrated by firms who seek satisfactory profits and satisfactory growth rather than maximum profits
self-characterization — portrayal; description: the actor's characterization of a politician.
semantic differential — a technique for measuring the connotative meaning of concepts by having an individual rate each concept on a series of graduated scales, each scale defined by a pair of polar adjectives, as good–bad or strong–weak.
sieve of eratosthenes — a method of obtaining prime numbers by sifting out the composite numbers from the set of natural numbers so that only prime numbers remain.
silicon tetrafluoride — a colorless, fuming gas, SiF 4 , used chiefly in the manufacture of fluosilicic acid.
sing a different tune — a succession of musical sounds forming an air or melody, with or without the harmony accompanying it.
single parent benefit — a form of government funded financial assistance paid to single parents
snap one's fingers at — any of the terminal members of the hand, especially one other than the thumb.
social stratification — the act or an instance of stratifying.
south pacific current — an ocean current that flows E in the South Pacific Ocean parallel to the Antarctic Circumpolar Current.
sovereign wealth fund — an investment fund created using the financial assets of a national government
split-finger fastball — a type of fastball that sinks abruptly as it nears home plate, thrown with the grip used for a forkball
split-screen facility — a facility allowing different scenes to be shown on screen at the same time
staffordshire terrier — former name of American Staffordshire terrier.
stare one in the face — to be glaringly obvious or imminent
stations of the cross — a series of 14 crosses, often accompanied by 14 pictures or carvings, arranged in order around the walls of a church, to commemorate 14 supposed stages in Christ's journey to Calvary
statistical inference — the theory, methods, and practice of forming judgments about the parameters of a population, usually on the basis of random sampling
stem-and-leaf diagram — a histogram in which the data points falling within each class interval are listed in order
sun protection factor — SPF.
supplementary benefit — (formerly) an extra amount of money that is paid to someone by the government, in addition to their normal income. Replaced by income support in 1988
surface acoustic wave — an acoustic wave generated on the surface of a piezoelectric substrate: used as a filter in electronic circuits
surface friction drag — the part of the drag on a body moving through a fluid that is dependent on the nature of the surface of the body
surface of projection — the surface upon which an image or a set of points is projected.
surface of revolution — a surface formed by revolving a plane curve about a given line.
take one's finger out — stop delaying or procrastinating
teacher certification — official qualifications for educators
tetrabromofluorescein — eosin (def 1).
the acting profession — actors considered as a group
the barber of seville — Italian Il barbiere di Siviglia. a comic opera (1816) by Gioacchino Rossini based on a comedy (1775) by Beaumarchais.
the battle of britain — from August to October 1940, the prolonged bombing of S England by the German Luftwaffe and the successful resistance by the RAF Fighter Command, which put an end to the German plan of invading Britain
the birth of a nation — an American film (1915), directed by D. W. Griffith.
the flickertail state — a name for the state of North Dakota
the rock of gibraltar — a limestone promontory at the tip of S Spain
the shipping forecast — a radio broadcast made by the BBC of weather reports and forecasts for the seas around the British Isles
the stationery office — (in the UK) the company that supplies the civil service with all its office supplies, machinery, printing and binding, etc
the supreme sacrifice — the sacrifice of one's life
theater of operations — the part of the theater of war, including a combat zone and a communications zone, that is engaged in military operations and their support.
tide-generating force — the difference between the force of gravity exerted by the moon or the sun on a particle of water in the ocean and that exerted on an equal mass of matter at the centre of the earth. The lunar tide-generating forces are about 2.2 times greater than are the solar ones
to fall into the trap — If someone falls into the trap of doing something, they think or behave in a way which is not wise or sensible.
to have green fingers — If someone has green fingers, they are very good at gardening and their plants grow well.
to lay down your life — If someone lays down their life for another person, they die so that the other person can live.
to risk life and limb — If someone risks life and limb, they do something very dangerous that may cause them to die or be seriously injured.
to take your mind off — If something takes your mind off a problem or unpleasant situation, it helps you to forget about it for a while.
traffic control tower — an elevated structure for the visual observation and control of the air and ground traffic at an airport
transformational rule — Linguistics. a rule of transformational grammar that relates two phrase markers in the course of a derivation from the deep to the surface syntactic representation of a sentence, as by reordering, inserting, or deleting elements; a rule that converts deep structures into surface structures.
triethyl orthoformate — a colorless liquid, C 7 H 16 O 3 , used chiefly in organic synthesis.

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