15-letter words containing a, m, i
- 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
- apophthegmatise — to speak in apophthegms
- apophthegmatist — a person who creates apophthegms
- apophthegmatize — to use apophthegms
- apple macintosh — Macintosh
- approximateness — The quality of being approximate.
- aqueous ammonia — ammonia (def 2).
- aqueous-ammonia — a colorless, pungent, suffocating, highly water-soluble, gaseous compound, NH 3 , usually produced by the direct combination of nitrogen and hydrogen gases: used chiefly for refrigeration and in the manufacture of commercial chemicals and laboratory reagents.
- arabian jasmine — a climbing shrub, Jasminum sambac, of India, having hairy branches and very fragrant white flowers that turn purple with age, used in making jasmine tea; sampaguita.
- arabic numerals — the figures 1, 2, 3, 4, 5, 6, 7, 8, 9, and the 0 (zero) that originated in India; Hindu-Arabic numerals
- arc de triomphe — the triumphal arch in Paris begun by Napoleon I to commemorate his victories of 1805–6 and completed in 1836
- arch of triumph — Arc de Triomphe.
- archaebacterium — Any primitive bacteria-like organism in the kingdom Archaea.
- argumentatively — fond of or given to argument and dispute; disputatious; contentious: The law students were an unusually argumentative group.
- aristotelianism — a philosophical tradition based on the wide-ranging belief system of Aristotle
- arithmetic mean — an average value of a set of integers, terms, or quantities, expressed as their sum divided by their number
- armenian church — the national Church of Armenia, founded in the early fourth century ad, the dogmas and liturgy of which are similar to those of the Orthodox Church
- armour-piercing — capable of penetrating armour plate
- arms inspection — the official checking of a country's weapons and other military equipment, usually to check that international agreements have been respected
- army air forces — a unit comprising almost all aviation, with its personnel, equipment, etc.: it became part of the Air Force on July 26, 1947.
- arrondissements — Plural form of arrondissement.
- assimilationism — the theory of promoting the incorporation and mixing of different groups in society
- assimilationist — a person who favours and promotes the incorporation and mixing of different groups in society
- astrodynamicist — a person who studies astrodynamics
- asymmetric bars — a pair of wooden or fibreglass bars placed parallel to each other but set at different heights, for various exercises
- asymmetric time — musical time consisting of an odd number of beats in each bar divided into uneven combinations, such as 3 + 2, 4 + 3, 2 + 3 + 2, etc
- atlantic salmon — a valuable food and game fish, Salmo salar, mainly of northern coastal Atlantic waters or, when spawning, in freshwater streams tributary to the ocean.
- atlas mountains — a mountain system of N Africa, between the Mediterranean and the Sahara. Highest peak: Mount Toubkal, 4165 m (13 664 ft)
- atmospherically — pertaining to, existing in, or consisting of the atmosphere: atmospheric vapors.
- atomic cocktail — an aqueous solution of radioactive substance administered orally as part of the treatment for cancer
- audio equipment — electrical devices used to play or record sound
- augmented sixth — an interval greater than a major sixth by a chromatic half step.
- augusta emerita — a market town in W Spain, in Extremadura, on the Guadiana River: founded in 25 bc; became the capital of Lusitania and one of the chief cities of Iberia. Pop: 52 110 (2003 est)
- australian mist — a breed of medium-sized cat with a short spotted or marbled coat
- autocannibalism — The eating of part of one's own body.
- autocollimation — the process used in an autocollimator.
- autodidacticism — any self-directed learning or self-education
- automatic drive — an automotive transmission requiring either very little or no manual shifting of gears.
- automatic focus — a system in a camera which automatically adjusts the lens so that the object being photographed is in focus, often one using infrared light to estimate the distance of the object from the camera
- automatic pilot — An automatic pilot or an autopilot is a device in an aircraft that automatically keeps it on a particular course.
- automatic rifle — a type of light machine gun capable of firing automatically or in single shots.
- automorphically — in an automorphic manner
- autorhythmicity — The quality of being autorhythmic, or generating its own rhythm, as for example the cells of the cardiac muscle do.
- axiom of choice — the axiom of set theory that given any collection of disjoint sets, a set can be so constructed that it contains one element from each of the given sets.
- azobisformamide — (chemistry) azodicarbonamide.
- azuchi-momoyama — a period of Japanese art, 1568–1600, characterized by construction of imposing, elegant castles and small, unadorned teahouses, lavish decorative arts, and bright-colored painting.
- bacchanalianism — the practice of bacchanalian behaviour; drunken revelry
- baconian method — induction (def 4a).
- badminton court — the court on which games of badminton are played