16-letter words containing a, c, r
- african honeybee — killer bee.
- african mahogany — any of several African trees of the meliaceous genus Khaya, esp K. ivorensis, that have wood similar to that of true mahogany
- african marigold — a tropical American plant, Tagetes erecta, cultivated for its yellow or orange flower heads and strongly scented foliage: family Asteraceae (composites)
- african wild dog — a mottled dog of Africa, Lycaon pictus
- african-american — African-Americans are black people living in the United States who are descended from families that originally came from Africa.
- african-canadian — a Canadian of African descent
- agency agreement — an agreement between a business and an agent appointed to promote its interests
- agreed procedure — an official set of guidelines of the steps that should be followed in the event of a dispute between two parties, esp in arbitration between employee and employer
- agricultural ant — harvester ant.
- air conditioning — Air conditioning is a method of providing buildings and vehicles with cool dry air.
- air vice-marshal — a senior Royal Air Force officer of equivalent rank to a rear admiral in the Royal Navy
- aircraft carrier — An aircraft carrier is a warship with a long, flat deck where aircraft can take off and land.
- airplane carrier — an aircraft carrier.
- alder flycatcher — a North American flycatcher, Empidonax alnorum, of alder thickets and other moist areas, that has greenish-brown upper parts and whitish underparts and is almost indistinguishable except by voice from E. traillii (willow flycatcher)
- aleutian current — a current in the Pacific Ocean that flows eastward between latitudes 40° and 50° N.
- alexander dubcek — Alexander, 1921–92, Czechoslovakian political leader: first secretary of the Communist Party 1968–69.
- algebraic number — any number that is a root of a polynomial equation having rational coefficients such as √2 but not π
- alimentary canal — The alimentary canal in a person or animal is the passage in their body through which food passes from their mouth to their anus.
- alizarin crimson — a pigment used in painting, derived from anthraquinone and characterized by its red color and transparency.
- allele frequency — the frequency of occurrence or proportions of different alleles of a particular gene in a given population.
- alligator wrench — a wrench having a V -shaped pair of serrated jaws set at right angles to the shank for turning cylindrical or irregularly shaped parts.
- alpha conversion — (theory) In lambda-calculus and reduction, the renaming of a formal parameter in a lambda abstraction. This does not change the meaning of the abstraction. For example: \ x . x+1 <--> \ y . y+1 If the actual argument to a lambda abstraction contains instances of the abstraction's formal parameter then it is necessary to rename the parameter before applying the abstraction to avoid name capture.
- alpha-adrenergic — of or having to do with an alpha receptor
- alpha-tocopherol — Alpha-tocopherol is a form of vitamin E.
- alphanumerically — In an alphanumeric manner; using alphanumeric characters.
- alternative fact — a theory posited as an alternative to another, often more widely accepted, theory
- alternative rock — a broad category of popular rock music typically regarded as somewhat out of the mainstream and variously including elements of punk rock, heavy metal, folk music, etc.
- altitude chamber — a chamber for simulating the conditions of air pressure and temperature for a given altitude in order to test the behavior of people and equipment in such an environment.
- aluminum carbide — a yellow, crystalline solid, Al 4 C 3 , that reacts with water to form methane.
- alveolar process — the ridgelike border of the upper and lower jaws containing the sockets of the teeth.
- ambulance chaser — a lawyer who seeks to encourage and profit from the lawsuits of accident victims
- ambulance driver — a person whose job is to drive an ambulance
- ambulance worker — any person who works in the ambulance service
- amebic dysentery — a form of dysentery caused by an amoeba (Entamoeba histolytica)
- american bittern — any of several tawny brown herons that inhabit reedy marshes, as Botaurus lentiginosus (American bittern) of North America, and B. stellaris, of Europe.
- american buffalo — bison (def 1).
- american cowslip — shooting star (def 2).
- american english — the form of English spoken in the US
- american kestrel — a small American falcon (Falco sparverius) with a reddish-brown back and tail; sparrow hawk
- american mustard — a mild yellow mustard
- american spanish — Spanish as used in Latin America. Abbreviation: AmerSp.
- american tragedy — a novel (1925) by Theodore Dreiser.
- amerigo vespucci — Amerigo [uh-mer-i-goh;; Italian ah-me-ree-gaw] /əˈmɛr ɪˌgoʊ;; Italian ˌɑ mɛˈri gɔ/ (Show IPA), (Americus Vespucius) 1451–1512, Italian merchant, adventurer, and explorer after whom America was named.
- aminocitric acid — an amino acid, C 6 H 9 O 7 N, that is a component of calf thymus ribonucleoprotein.
- amusement arcade — An amusement arcade is a place where you can play games on machines which work when you put money in them.
- anabolic steroid — Anabolic steroids are drugs which people, especially athletes, take to make their muscles bigger and to give them more strength.
- anagrammatically — In an anagrammatic manner.
- anal intercourse — a form of sexual intercourse in which the penis is inserted into the anus
- analog recording — a method of sound recording in which an input audio waveform is converted to an analogous waveform.
- analytical entry — a bibliographic record of part of an item for which a comprehensive bibliographic record has been made, as a single play or essay in an anthology, a subject in a comprehensive work, or a part of a multivolume set of books.