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17-letter words containing f, a, n, c, l

  • law of reflection — the principle that when a ray of light, radar pulse, or the like, is reflected from a smooth surface the angle of reflection is equal to the angle of incidence, and the incident ray, the reflected ray, and the normal to the surface at the point of incidence all lie in the same plane.
  • law of refraction — the principle that for a ray, radar pulse, or the like, that is incident on the interface of two media, the ratio of the sine of the angle of incidence to the sine of the angle of refraction is equal to the ratio of the velocity of the ray in the first medium to the velocity in the second medium and the incident ray, refracted ray, and normal to the surface at the point of incidence all lie in the same plane.
  • line of scrimmage — an imaginary line parallel to the goal lines that passes from one sideline to the other through the point of the football closest to the goal line of each team.
  • luminous efficacy — the quotient of the luminous flux of a radiation and its corresponding radiant flux
  • macfarlane burnet — Sir (Frank) Macfarlane [muh k-fahr-luh n] /məkˈfɑr lən/ (Show IPA), 1899–1985, Australian physician: Nobel Prize in Physiology 1960.
  • manufacturability — The condition of being manufacturable.
  • mental deficiency — mental retardation
  • monarch butterfly — a large, deep-orange butterfly, Danaus plexippus, having black and white markings, the larvae of which feed on the leaves of milkweed.
  • natural frequency — the frequency at which a system vibrates when set in free vibration
  • nuclear-free zone — any area in which nuclear weapons, power plants, or materials are not allowed.
  • off-year election — (in the US) an election held in a year when a presidential election does not take place
  • old norman french — Norman French (sense 1)
  • open-channel flow — Open-channel flow is a liquid flow in a channel, which has a free liquid surface.
  • overreach oneself — to fail because of trying to do more than one can
  • phenylformic acid — benzoic acid.
  • pre-qualification — a quality, accomplishment, etc., that fits a person for some function, office, or the like.
  • rational function — a function that can be written as the quotient of two polynomials with integral coefficients.
  • recursion formula — a formula for determining the next term of a sequence from one or more of the preceding terms.
  • reduction formula — a formula, such as sin (90° ± A) = cos A, expressing the values of a trigonometric function of any angle greater than 90° in terms of a function of an acute angle
  • reference library — A reference library is a library that contains books which you can look at in the library itself but which you cannot borrow.
  • reflection nebula — a cloud of interstellar gas and dust that reflects the light of neighboring stars.
  • republic of china — People's Republic of, a country in E Asia. 3,691,502 sq. mi. (9,560,990 sq. km). Capital: Beijing.
  • republic-of-china — People's Republic of, a country in E Asia. 3,691,502 sq. mi. (9,560,990 sq. km). Capital: Beijing.
  • return of capital — A return of capital is a situation in which you receive back money that was previously invested.
  • road-fund licence — a licence showing that the tax payable in respect of a motor vehicle has been paid
  • sacrificial anode — Chemistry. an anode that is attached to a metal object subject to electrolysis and is decomposed instead of the object.
  • scarlet firethorn — a Eurasian evergreen, thorny shrub, Pyracantha coccinea, of the rose family, having white, hairy flower clusters and bright red berries.
  • self-acknowledged — widely recognized; generally accepted: an acknowledged authority on Chinese art.
  • self-appreciation — gratitude; thankful recognition: They showed their appreciation by giving him a gold watch.
  • self-commendation — the act of commending; recommendation; praise: commendation for a job well done.
  • self-condemnation — the act of condemning.
  • self-confirmation — the act of confirming.
  • self-consecration — the act of setting oneself to a task or vocation without ordination by others or by a religious body.
  • self-conservation — the act of conserving; prevention of injury, decay, waste, or loss; preservation: conservation of wildlife; conservation of human rights.
  • self-depreciating — self-deprecating.
  • self-dissociation — an act or instance of dissociating.
  • self-emancipation — the act of emancipating.
  • self-incompatible — not capable of self-pollination.
  • self-purification — a natural process of purifying, as the ability of a body of water to rid itself of pollutants.
  • self-renunciation — renunciation of one's own will, interests, etc.
  • self-satisfaction — a usually smug satisfaction with oneself, one's achievements, etc.
  • self-significance — importance; consequence: the significance of the new treaty.
  • sexual preference — Someone's sexual preference is the same as their sexual orientation.
  • silk manufacturer — a person or business that is involved in the manufacture of silk thread and fabric
  • spatial frequency — the measure of fine detail in an optical image in terms of cycles per millimetre
  • spoonbill catfish — flathead catfish.
  • technical offence — an action which is prohibited by law, but for which no blame can be attached to the person who commits it
  • the final curtain — the closing of the curtain at the end of the action of a play
  • traffic policeman — a policeman controlling traffic, esp while stationed at an intersection, or enforcing traffic regulations
  • traffic violation — driving offence
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