15-letter words starting with a
- antirationality — the opposition to rationality
- antiremonstrant — the party that opposed the Remonstrants
- antiretrovirals — Plural form of antiretroviral.
- antiromanticism — the opposition to romanticism
- antisegregation — opposed to or acting against segregration
- antisentimental — (of a piece of art or literature) deliberately unsentimental
- antishoplifting — designed to prevent shoplifting
- antispeculation — opposed to or acting against excessive oil speculation
- antispeculative — opposed to or acting against speculation
- antitheoretical — opposed to or contradicting a theory
- antitraditional — opposed to or acting with disregard for tradition
- antitranspirant — any substance that decreases transpiration and, usually, photosynthesis
- antitrinitarian — rejecting or opposed to the Christian doctrine of the Holy Trinity
- antituberculous — (medicine) Acting to combat or counteract tuberculosis.
- antivivisection — opposed to the act or practice or performing experiments on living animals, involving cutting into or dissecting the body
- anybody's guess — a person of some importance: If you're anybody, you'll receive an invitation.
- aortic stenosis — abnormal narrowing of the aorta, especially of its orifice, usually as a result of rheumatic fever or embryologic anomalies.
- apartment block — building: flats, apartments
- apartment hotel — a hotel that rents furnished apartments or suites suitable for housekeeping, on a weekly or more permanent basis, and usually supplies all hotel services.
- apartment house — a building containing a number of residential apartments.
- aphrodite terra — a large plateau region that stretches approximately halfway around the middle latitude of Venus.
- apical meristem — meristem at the apex of a root or shoot.
- aplastic anemia — a form of anemia resulting from a failure of the bone marrow to produce adequate quantities of the essential blood components, including leukocytes and platelets
- apocalyptically — of or like an apocalypse; affording a revelation or prophecy.
- apolipoproteins — Plural form of apolipoprotein.
- apollo asteroid — one of a number of asteroids whose orbits cross that of the earth.
- apollo computer — (company) A company making workstations often used for CAD. From 1980 to 1987, Apollo were the largest manufacturer of network workstations. Apollo workstations ran Aegis, a proprietary operating system with a Posix-compliant Unix alternative frontend. Apollo's networking was particularly elegant, among the first to allow demand paging over the network, and allowing a degree of network transparency and low sysadmin-to-machine ratio that is still unmatched. Apollo's largest customers were Mentor Graphics (electronic design), GM, Ford, Chrysler, and Boeing (mechanical design). Apollo was acquired by Hewlett-Packard in 1989, and gradually closed down over the period 1990-1997.
- apophthegmatise — to speak in apophthegms
- apophthegmatist — a person who creates apophthegms
- apophthegmatize — to use apophthegms
- apostle pitcher — a stoneware pitcher decorated in relief with figures of the apostles.
- apostles' creed — a concise statement of Christian beliefs dating from about 500 ad, traditionally ascribed to the Apostles
- apostolic vicar — vicar apostolic.
- apostolicalness — The state or quality of being apostolical.
- apostrophically — (rhetoric) Using apostrophe; with sudden exclamatory dialogue.
- appalachian tea — any of various plants, as withe rod, whose leaves were used locally for tea in pioneer times
- appeal tribunal — An appeal tribunal is a special court or committee that is formed to reconsider a decision made by another court or committee.
- appellate court — In the United States, an appellate court is a special court where people who have been convicted of a crime can appeal against their conviction.
- appendicularian — of or relating to a family of molluscs (Appendicularia) characterized by their long tail appendages
- apple macintosh — Macintosh
- apple-pie order — perfect order or condition
- applesoft basic — (language) A version of BASIC for Apple computers.
- apprentice work — work done when young and a novice
- apprenticeships — Plural form of apprenticeship.
- approach lights — lights on the runway that guide planes coming in to land
- approachability — capable of being approached; accessible.
- appropinquation — the action of approaching
- appropriateness — suitable or fitting for a particular purpose, person, occasion, etc.: an appropriate example; an appropriate dress.
- approval rating — approval of a politician as shown by opinion polls
- approved school — In Britain in the past, an approved school was a boarding school where young people could be sent to stay if they had been found guilty of a crime.