14-letter words containing a, t, r, o
- anticorrosives — Plural form of anticorrosive.
- anticorruption — the opposition to or prevention of corruption
- antidemocratic — opposed to the principles or practice of democracy
- antidepression — alleviating or preventing depression
- antidiarrhoeal — a drug used to prevent or treat diarrhoea
- antidromically — in an antidromic manner
- antiforeignism — the policy or practice of showing hostility toward foreigners, foreign customs, etc.
- antigovernment — opposed to government
- antihistorical — opposed to history or to methods which emphasize or require historical study
- antilock brake — a brake fitted to some road vehicles that prevents skidding and improves control by sensing and compensating for overbraking
- antilogarithms — Plural form of antilogarithm.
- antimicrobials — Plural form of antimicrobial.
- antimonarchist — opposed to a monarchy
- antimoniferous — Containing or producing antimony.
- antiprotozoals — Plural form of antiprotozoal.
- antiregulatory — opposed to regulation
- antiretroviral — inhibiting the process by which a retrovirus replicates
- antisubversion — opposed to or acting against subversion
- antithrombotic — preventing the formation of blood clots
- aperture ratio — relative aperture.
- apheliotropism — a tendency of certain plants to turn away from the sun; negative heliotropism
- aphoristically — in an aphoristic manner
- aphthous fever — foot-and-mouth disease.
- apolipoprotein — any of a group of glycoproteins that form part of the structure of lipoproteins, some of which have been associated with Alzheimer's disease
- apostrophizing — Present participle of apostrophize.
- apothecary jar — a small, covered jar, formerly used by druggists to hold pharmaceuticals, now chiefly in household use to hold spices, candies, cosmetics, etc., and sometimes decorated, as a lamp base or flower vase.
- apotropaically — in an apotropaic manner
- apparent power — The apparent power of an alternating current circuit is the product of the RMS values of the voltage and the current, expressed as volt-amperes.
- apple turnover — a pastry containing apple
- appleton layer — the F region of the ionosphere
- apportionments — Plural form of apportionment.
- appreciational — gratitude; thankful recognition: They showed their appreciation by giving him a gold watch.
- approach light — one of a series of lights installed along the projected centerline of an airport runway to assist a pilot in aligning the aircraft during the approach to landing at night.
- approach stage — the stage of landing when a plane is approaching the runway
- appropriations — Plural form of appropriation.
- approximations — Plural form of approximation.
- approximeeting — the practice of a group of people making indefinite plans to meet and then altering those plans regularly via mobile phones according to changing circumstances
- arachnodactyly — A condition in which the fingers and hands are abnormally long and slender.
- arboricultural — Of or pertaining to the care, planting and maintenance of trees.
- arborsculpture — The art and craft technique of growing and shaping tree trunks.
- archaeocyathid — one of the marine invertebrates of the extinct phylum Archaeocyatha, widely distributed during the Cambrian Period, having a limy, typically conical or cylindrical skeleton composed of sievelike inner and outer walls.
- archaeologists — Plural form of archaeologist.
- archaeometrist — a person who uses archaeometry
- archidiaconate — the office, term of office, or area of jurisdiction of an archdeacon
- architectonics — the science of architecture
- arctic monkeys — British rock group (formed 2002): comprising Alex Turner (born 1986; vocals, guitar), Jamie Cook (born 1985, guitar), Matt Helders (born 1986, drums, vocals) and Nick O'Malley (born 1985, bass guitar); their albums include Whatever People Say I Am, That's What I'm Not (2006), Favourite Worst Nightmare (2007), and AM (2013)
- arctic redpoll — a finch, Carduelis hornemanni, of the family Fringillidae, which breeds in tundra birch forest
- areal velocity — a measure of the velocity of one celestial body in orbit about another, equal to the area swept out per unit time by the vector joining the two bodies.
- argonne forest — a wooded region in NE France: battles, World War I, 1918; World War II, 1944.
- argue the toss — to wrangle or dispute at length