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17-letter words containing i, a, t, r, o

  • alligator snapper — a large, freshwater snapping turtle (Macroclemys temmincki) of the SE U.S. and the Mississippi Valley, found chiefly in rivers and bayous: it may weigh up to 100 kg (220 lb)
  • alpha-fetoprotein — a protein that forms in the liver of the human fetus. Excessive quantities in the amniotic fluid and maternal blood may indicate spina bifida in the fetus; low levels may point to Down's syndrome
  • alphaphotographic — Of or pertaining to alphaphotographics.
  • altamonte springs — a city in central Florida.
  • alternating group — the subgroup consisting of all even permutations, of the group of all permutations of a finite set.
  • ambrette-seed oil — a yellow oil expressed from ambrette seeds, used as a fixative in the manufacture of perfume.
  • american dog tick — a common tick, Dermacentor variabilis, that is the vector of Rocky Mountain spotted fever in the eastern U.S. and also carries tularemia.
  • american football — American football is a game similar to rugby that is played by two teams of eleven players using an oval-shaped ball. Players try to score points by carrying the ball to their opponents' end of the field, or by kicking it over a bar fixed between two posts.
  • ammonium stearate — a tan, waxlike, water-insoluble solid, C 18 H 39 NO 2 , used chiefly in the manufacture of cosmetics.
  • amoebic dysentery — inflammation of the intestines caused by the parasitic amoeba Endamoeba histolytica
  • amor vincit omnia — love conquers everything
  • amphidromic point — a point of almost zero tidal fluctuation on the ocean surface, represented on a chart of cotidal lines by a point from which these lines radiate.
  • an effort of will — If you do something difficult or painful by an effort of will, you manage to make yourself do it.
  • anabolic steroids — a synthetic derivative of testosterone, sometimes used by athletes to help increase weight and strength.
  • anachronistically — In an anachronistic manner; in the manner of an anachronism.
  • anagrammatization — Transformation of a word, etc. into its anagram.
  • analytic geometry — the branch of geometry in which a coordinate graphing system makes visible, using points, lines, and curves, the numerical relationships of algebraic equations
  • aneroid barometer — a device for measuring atmospheric pressure without the use of fluids. It consists of a partially evacuated metal chamber, the thin corrugated lid of which is displaced by variations in the external air pressure. This displacement is magnified by levers and made to operate a pointer
  • angle of friction — the angle of a plane to the horizontal when a body placed on the plane will just start to slide. The tangent of the angle of friction is the coefficient of static friction
  • angostura bitters — a bitter aromatic tonic made from gentian and various spices and vegetable colourings, used as a flavouring in alcoholic drinks
  • anionic detergent — any of a class of synthetic compounds whose anions are alkali salts, as soap, or whose ions are ammonium salts.
  • anthracosilicosis — a form of pneumoconiosis occurring in miners, caused by the inhalation of coal and siliceous particles.
  • anthraquinone dye — any of the class of dyes derived from anthraquinone, used for dyeing textiles, especially cotton, rayon, and silk.
  • anthropogenically — In an anthropogenic way.
  • anthropologically — the science that deals with the origins, physical and cultural development, biological characteristics, and social customs and beliefs of humankind.
  • anthropomorphises — Third-person singular simple present indicative form of anthropomorphise.
  • anthropomorphized — Simple past tense and past participle of anthropomorphize.
  • anthropomorphosis — transformation into human form
  • anthropophaginian — (nonce, humorous) One who eats human flesh.
  • anthroposemiotics — The study of human communication.
  • anti-carcinogenic — any substance or agent that tends to produce a cancer.
  • anti-conservatism — the disposition to preserve or restore what is established and traditional and to limit change.
  • anti-conservative — disposed to preserve existing conditions, institutions, etc., or to restore traditional ones, and to limit change.
  • anti-inflammatory — reducing inflammation
  • anti-inflationary — of or relating to measures to counteract or combat inflation
  • anti-profiteering — a person who seeks or exacts exorbitant profits, especially through the sale of scarce or rationed goods.
  • anti-totalitarian — of or relating to a centralized government that does not tolerate parties of differing opinion and that exercises dictatorial control over many aspects of life.
  • antiauthoritarian — Opposed to authority.
  • anticipatory loss — grief that is felt in anticipation of someone's death
  • antidazzle mirror — a rear-view mirror for road vehicles that only partially reflects headlights behind
  • antiferromagnetic — noting or pertaining to a substance in which, at sufficiently low temperatures, the magnetic moments of adjacent atoms point in opposite directions.
  • antimycobacterial — (medicine) That counteracts the effects of mycobacteria.
  • antiproliferation — opposing an increase in nuclear weapons, especially in allowing additional countries to obtain them.
  • antiproliferative — of or relating to a substance used to prevent or retard the spread of cells, especially malignant cells, into surrounding tissues.
  • antiprostaglandin — A prostaglandin inhibitor.
  • antirevolutionary — opposed to revolution, esp opposed to a particular revolution and the people who are carrying it out
  • antivirus program — antivirus software
  • anytime algorithm — (algorithm)   An algorithm that returns a sequence of approximations to the correct answer such that each approximation is no worse than the previous one, i.e. the algorithm can be stopped at _any time_. x = (x + b / x) / 2 Each new x is closer to the square root than the previous one. Applications might include a real-time control system or a chess program that is allowed a fixed thinking time.
  • aperture priority — an automatic exposure system in which the photographer selects the aperture and the camera then automatically sets the correct shutter speed
  • aperture-priority — of or relating to a semiautomatic exposure system in which the photographer presets the aperture and the camera selects the shutter speed.
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