12-letter words containing a, r, i, s
- affranchised — Simple past tense and past participle of affranchise.
- aforestation — Alternative spelling of afforestation.
- africanness' — Also, Africa. of or from Africa; belonging to the black peoples of Africa.
- afrikanerism — a word, term, or usage peculiar to or originating among Afrikaners.
- afro-asiatic — a family of languages of SW Asia and N Africa, consisting of the Semitic, ancient Egyptian, Berber, Cushitic, and Chadic subfamilies
- afro-british — of or relating to British people of African descent
- afrocentrism — centered on Africa or on African-derived cultures, as those of Brazil, Cuba, and Haiti: Afrocentric art.
- agaricaceous — belonging to the Agaricaceae, a family of fungi including mushrooms having blade-shaped gills on the underside of the cap.
- aggrandising — Present participle of aggrandise.
- aggravations — Plural form of aggravation.
- aggregations — Plural form of aggregation.
- aggressively — characterized by or tending toward unprovoked offensives, attacks, invasions, or the like; militantly forward or menacing: aggressive acts against a neighboring country.
- aggressivity — the state or quality of being aggressive
- aggrupations — Plural form of aggrupation.
- agp graphics — Accelerated Graphics Port
- agribusiness — Agribusiness is the various businesses that produce, sell, and distribute farm products, especially on a large scale.
- agriproducts — Plural form of agriproduct.
- agrobusiness — the businesses collectively associated with the production, processing, and distribution of agricultural products.
- agroindustry — an activity combining agriculture and industry
- aids-related — caused by or associated with the AIDS virus
- ailurophiles — Plural form of ailurophile.
- ailurophobes — Plural form of ailurophobe.
- air disaster — a very serious air crash in which in a lot of people are killed or injured
- air division — an organizational unit smaller than an air force, usually composed of a headquarters and two or more wings
- air embolism — the presence in the tissues and blood of a gas, such as air or nitrogen bubbles, caused by an injection of air or, in the case of nitrogen, by an abrupt and substantial reduction in the ambient pressure
- air mattress — an inflatable mattress or pad, as of plastic or rubber, used for camping, as an extra bed, etc.
- air ministry — (in England) the department of government administering all civil and military matters concerning aviation.
- air observer — observer (def 3).
- air pressure — the force of air pressing down on an area
- air-sea base — a centre from which military aircraft and naval vessels operate
- airbrush out — to remove evidence of (someone or something from photographs, books, or history)
- aircraftsman — a person holding the rank of noncommissioned officer in the RAF.
- airpocalypse — (informal) The presence of dense smog in many parts of China.
- airtightness — the quality of being airtight
- alarm signal — a signal warning of danger
- alberti bass — a reiterated broken-chord figure used as an accompaniment, especially in 18th-century rococo keyboard music.
- alexandrines — Plural form of alexandrine.
- alexandrinus — the Greek uncial codex, dating from the early 5th century a.d., originally containing the complete text of the Greek Old and New Testaments.
- algesiometer — an instrument for determining the sensitiveness of the skin to a painful stimulus.
- alice's fern — Hartford fern.
- alieni juris — under the control of another, as a lunatic or infant.
- alkali grass — a plant, Zigadenus elegans, of central and western North America, having tough, wiry, bluish-green leaves and greenish flowers.
- alkalimeters — Plural form of alkalimeter.
- allegoristic — writing or using allegory; interpreting in an allegorical sense.
- allegrissimo — (music) A direction in musical notation indicating that the musical piece should be played very fast and lively.
- allomorphism — variation in the crystalline form of a chemical compound
- alluringness — The state or quality of being alluring.
- alphabetiser — Non-Oxford British standard spelling of alphabetizer.
- alphaviruses — Plural form of alphavirus.
- alstroemeria — any plant of the tuberous perennial liliaceous genus Alstroemeria, originally S American, grown for their brightly coloured orchid-like flowers