14-letter words containing o, r, a, i
- anticommercial — opposed to profit-seeking or commercialism
- anticommutator — (mathematics) A function of two elements A and B, defined as AB + BA.
- anticonformity — action in accord with prevailing social standards, attitudes, practices, etc.
- 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
- apico-alveolar — articulated with the apex of the tongue touching or near the alveolar ridge, as (t), (z), (n), and (l)
- 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.
- apotropaically — in an apotropaic manner
- apple polisher — a sycophant; toady
- apple-polisher — to curry favor with someone, especially in an obsequious or flattering manner.
- 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.
- 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
- arabian coffee — a tall, widely cultivated shrub (Coffea arabica) of the madder family, yielding coffee beans that are the world's chief source of commercially produced coffee: native to Africa but now present throughout the tropics, esp. in Brazil
- arachnological — relating to arachnology
- arboricultural — Of or pertaining to the care, planting and maintenance of trees.
- arcado-cyprian — an ancient language group of eastern Greece.
- 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.
- archaeological — of or relating to archaeology.
- archaeologists — Plural form of archaeologist.
- archaeometrist — a person who uses archaeometry
- archbishoprics — Plural form of archbishopric.
- archidiaconate — the office, term of office, or area of jurisdiction of an archdeacon
- archiepiscopal — of or associated with an archbishop
- 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)