11-letter words containing a, t, r, o
- 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)
- 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.
- algorithmic — a set of rules for solving a problem in a finite number of steps, as for finding the greatest common divisor.
- allegrettos — Plural form of allegretto.
- 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.
- allotropism — a property of certain elements, as carbon, sulfur, and phosphorus, of existing in two or more distinct forms; allomorphism.
- allotropous — (of flowers) having the nectar accessible to any species of insect
- 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
- aloha shirt — Hawaiian shirt
- alt.country — a genre of country music originating in the 1990s and influenced by both early country music and contemporary rock music
- alt.sources — (messaging, programming) A Usenet newsgroup for posting program source code.
- altar board — an elaborately carved wooden panel, placed in a recess on top of an altar during the Mass, on which the chalice and paten rest.
- altar cloth — the cloth used for covering an altar: often applied also to the frontal
- 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
- altostratus — Altostratus is a type of thick gray cloud that forms at intermediate altitudes.
- amalgamator — a person or object that carries out amalgamation
- amatorially — in an amatory manner
- 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.
- aminopterin — a derivative of pterin used in chemotherapy
- amobarbital — a drug with sedative, hypnotic, and analgesic properties used to relieve insomnia and control convulsions
- 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.
- amphithuron — amphithyra (def 1).
- amphithyron — amphithyra (def 1).
- amyotrophic — (medicine) Characterized by atrophy of the muscles.
- anachronist — A person who has anachronistic views or habits.
- 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
- anal erotic — a person who experiences sexual gratification of the anal area
- anaplerotic — of or relating to anaplerosis
- anastrophes — Plural form of anastrophe.
- anastrozole — an anti-oestrogen drug used in the treatment of breast cancer in post-menopausal women
- ancestorial — of, belonging to, or relating to ancestors
- anchor bolt — any of several kinds of bolts inserted and fixed in masonry as a hold for timbers, shelves, etc.
- anchor shot — grapple shot.
- anemometers — Plural form of anemometer.
- anfractuous — characterized by twists and turns; convoluted
- angelolatry — the worship of angels
- angkor thom — the site of the ruined capital city of the Khmer empire, at Angkor.