11-letter words containing a, e, r, o
- air officer — a term used to denote the appointment of any officer in the Royal Air Force above the rank of Air Commodore to a position of command
- albatrosses — Plural form of albatross.
- albedometer — an instrument that measures the albedo of a surface.
- album cover — the front of the outer packaging of a record album, usually decorated and showing its title and the name of the artist
- aldermaston — a village in S England, in West Berkshire unitary authority, Berkshire, SW of Reading: site of the Atomic Weapons Research Establishment and starting point of the Aldermaston marches (1958–63), organized by the Campaign for Nuclear Disarmament. Pop: 927 (2001)
- alderperson — a member of a municipal legislative body, especially of a municipal council.
- aldosterone — the principal mineralocorticoid secreted by the adrenal cortex. A synthesized form is used in the treatment of Addison's disease. Formula: C21H27O5
- aldotetrose — (carbohydrate) Any aldose having four carbon atoms.
- alendronate — (organic chemistry) Any salt or ester of alendronic acid.
- aleuromancy — (in ancient times) the use of flour as a means of divination.
- alford plea — Law. a pleading of guilty in a plea bargain in which the defendant maintains his or her innocence.
- all-purpose — You use all-purpose to refer to things that have lots of different uses or can be used in lots of different situations.
- all-rounder — Someone who is an all-rounder is good at a lot of different skills, academic subjects, or sports.
- allegorical — An allegorical story, poem, or painting uses allegory.
- allegorized — Simple past tense and past participle of allegorize.
- allegorizer — a person who talks in or explains by means of allegories
- allegrettos — Plural form of allegretto.
- allelomorph — allele
- alleviators — Plural form of alleviator.
- alleviatory — having the ability to reduce or moderate the severity of something
- alligatored — Damaged by alligatoring.
- allocentric — Concerned with the interests of others more than one's own; community-minded.
- allocheiria — a medical condition in which sensation is felt at a different point on the body from that stimulated
- almond tree — a small widely cultivated rosaceous tree, Prunus amygdalus, that is native to W Asia and has pink flowers and a green fruit containing an edible nutlike seed
- almoravides — a member of a Muslim dynasty ruling in Spain and northern Africa from 1056 to 1147.
- alt.sources — (messaging, programming) A Usenet newsgroup for posting program source code.
- altar stone — a large stone used as an altar
- alterations — adjustments
- altercation — An altercation is a noisy argument or disagreement.
- alternation — successive change from one condition or action to another and back again repeatedly
- alternators — Plural form of alternator.
- altoruffled — altogether ruffled
- ambiversion — a condition or character trait that includes elements of both introversion and extroversion
- ameliorated — Simple past tense and past participle of ameliorate.
- ameliorates — Third-person singular simple present indicative form of ameliorate.
- ameliorator — A person who, or thing which ameliorates.
- amen corner — in some rural Protestant churches, the seats to the minister's right, once occupied by those leading the responsive amens
- amenorrheic — of or relating to amenorrhea
- amenorrhoea — abnormal absence of menstruation
- amino resin — any thermosetting synthetic resin formed by copolymerization of amines or amides with aldehydes. Amino resins are used as adhesives and as coatings for paper and textiles
- aminoborane — (inorganic compound) A mixed hydride of nitrogen and boron, NH2BH2, whose polymer is proposed as a storage site for hydrogen.
- aminopterin — a derivative of pterin used in chemotherapy
- aminopyrine — a colorless, crystalline powder, C13H17N3O, sometimes used to reduce fever or pain: may cause agranulocytosis
- amorousness — inclined or disposed to love, especially sexual love: an amorous disposition.
- amortizable — Finance. to liquidate or extinguish (a mortgage, debt, or other obligation), especially by periodic payments to the creditor or to a sinking fund. to write off a cost of (an asset) gradually.
- ampere-hour — a practical unit of quantity of electricity; the quantity that flows in one hour through a conductor carrying a current of 1 ampere. 1 ampere-hour is equivalent to 3600 coulombs
- amphigories — Plural form of amphigory.
- anachronize — To refer to, or put into, a wrong time.
- anacreontic — in the manner of the Greek lyric poet Anacreon (?572–?488 bc), noted for his short songs celebrating love and wine
- anaerobiont — an organism that can live anaerobically