12-letter words containing a, d, r, i
- aerosiderite — a meteorite which is composed mainly of iron
- aethelred ii — ("Ethelred the Unready") a.d. 968?–1016, king of England 978–1013, 1014–1016.
- affranchised — Simple past tense and past participle of affranchise.
- affrightedly — in a frightened or alarmed manner
- afrikanerdom — (in South Africa) Afrikaner nationalism based on pride in the Afrikaans language and culture, conservative Calvinism, and a sense of heritage as pioneers
- after-dinner — immediately following dinner: an after-dinner speech.
- aggrandising — Present participle of aggrandise.
- aggrandizing — Present participle of aggrandize.
- agriproducts — Plural form of agriproduct.
- agroindustry — an activity combining agriculture and industry
- aide-memoire — An aide-memoire is something such as a list that you use to remind you of something.
- aids-related — caused by or associated with the AIDS virus
- air corridor — an air route along which aircraft are allowed to fly
- air cylinder — a cylinder containing air, esp one fitted with a piston and used for damping purposes
- 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 drilling — Air drilling is a drilling method in which compressed air or nitrogen is used to cool the drill bit and lift cuttings out of the wellbore.
- airfreighted — Simple past tense and past participle of airfreight.
- airport code — a three-letter abbreviation of the names of the world's major airports, used especially as an identifier for routing baggage.
- aldebaranium — (chemistry, obsolete) A rejected name for ytterbium.
- aldermanlike — resembling an alderman, esp in being pompous
- alexander ii — 1198–1249, king of Scotland (1214–49), son of William (the Lion)
- alexander iv — (Rinaldo Conti) died 1261, Italian ecclesiastic: pope 1254–61.
- alexander vi — original name Rodrigo Borgia. 1431–1503, pope (1492–1503): noted for his extravagance and immorality as well as for his patronage of the arts; father of Cesare and Lucrezia Borgia, with whom he is said to have committed incest
- 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.
- ambidextrous — Someone who is ambidextrous can use both their right hand and their left hand equally skilfully.
- ambrettolide — a colorless liquid, C 16 H 28 O 2 , having a strong musky odor, used as a fixative in the manufacture of perfume.
- americanized — If someone is Americanized, they do things in a way that is typical of the United States.
- amygdaliform — almond-shaped.
- anaphrodisia — diminished sexual desire.
- andragogical — the methods or techniques used to teach adults: Many educators believe that the principles of andragogy, as advanced by Malcolm Knowles, have great relevance to adult education; others are not so certain.
- androcentric — having or regarding man or the male sex as central or primary
- androclinium — clinandrium.
- androgenesis — a type of reproduction in insects and plants involving the development of an embryo that contains only paternal chromosomes
- androgenetic — related to androgenesis
- androgenized — Simple past tense and past participle of androgenize.
- androscoggin — a river flowing from NE New Hampshire through SW Maine into the Kennebec River. 171 miles (275 km) long.
- angst-ridden — characterized by a feeling of dread or anxiety
- animadverted — Simple past tense and past participle of animadvert.
- animadverter — a person who expresses his or her opinion without fear of criticism or rebuke
- antemeridian — before noon; in the morning
- anteprandial — before dinner
- antherozooid — Alternative form of antherozoid.
- anthropodicy — An attempt, or argument attempting, to justify the existence of humanity as good (contrast theodicy).
- anthropoidal — Anthropoid.
- anti-radical — opposed to radicalism or radicals.
- antiandrogen — (steroid, pharmacology) Any substance that inhibits the release or the biological effects of an androgen.
- antidandruff — preventing or treating dandruff
- antideuteron — the antimatter counterpart to the deuteron.