15-letter words containing o, t, m, a, n
- antiferromagnet — a material which exhibits antiferromagnetism
- antihemorrhagic — That stops or reduces hemorrhage.
- antimetabolites — Plural form of antimetabolite.
- antimonarchical — opposed to the monarchy
- antimony glance — stibnite
- antimony yellow — a poisonous pigment used in painting and enameling, consisting chiefly of lead antimoniate and characterized by its fugitive yellow color, rapid drying rate, and strong film-forming properties.
- antirationalism — the opposition to rationalism
- antiremonstrant — the party that opposed the Remonstrants
- antiromanticism — the opposition to romanticism
- 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.
- apple macintosh — Macintosh
- approximateness — The quality of being approximate.
- archaeastronomy — (astronomy, archaeology) The historical, especially archeological, study of astronomy; the study of the astronomical systems and methods of ancient cultures often embracing the astrology and cosmology of the past.
- archeoastronomy — the branch of archaeology that deals with the apparent use by prehistoric civilizations of astronomical techniques to establish the seasons or the cycle of the year, especially as evidenced in the construction of megaliths and other ritual structures.
- aristotelianism — a philosophical tradition based on the wide-ranging belief system of Aristotle
- armaments depot — a store for armaments
- arms inspection — the official checking of a country's weapons and other military equipment, usually to check that international agreements have been respected
- army-navy store — a retail store selling a stock of surplus army, naval, and other military apparel and goods, often at bargain rates.
- arrondissements — Plural form of arrondissement.
- asbestos cement — a compound of asbestos fiber and Portland cement formerly used for various nonstructural building purposes.
- 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
- 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)
- audio equipment — electrical devices used to play or record sound
- augmented roman — a writing system based on an expanded English alphabet, consisting of 43 characters representing different phonemes of spoken English, used for teaching beginners to read. Abbreviation: I.T.A., i.t.a.
- autocannibalism — The eating of part of one's own body.
- autocollimation — the process used in an autocollimator.
- autotransformer — a transformer in which part of the winding is common to both primary and secondary circuits
- baconian method — induction (def 4a).
- badminton court — the court on which games of badminton are played
- ball ammunition — live small-arms ammunition
- balloon payment — a large payment that concludes a series of smaller payments, for example in order to repay a loan
- bar examination — a written examination to determine if one is qualified to practice law in a particular jurisdiction.
- barry mountains — a mountain range in SE Australia, in E Victoria: part of the Australian Alps
- bathing costume — A bathing costume is a piece of clothing that is worn for swimming, especially by women and girls.
- beat one's gums — to talk much and idly
- beat one's meat — to masturbate
- bergamot orange — a small Asian spiny rutaceous tree, Citrus bergamia, having sour pear-shaped fruit
- bioaccumulation — the process in which industrial waste, toxic chemicals, etc. gradually accumulate in living tissue
- bit-mapped font — a computer font whose characters are held in memory as series of dots.
- bituminous coal — a soft black coal, rich in volatile hydrocarbons, that burns with a smoky yellow flame. Fixed carbon content: 46–86 per cent; calorific value: 1.93 × 107 – 3.63 × 107 J/kg
- black mountains — a mountain range running from N Monmouthshire and SE Powys (Wales) to SW Herefordshire (England). Highest peak: Waun Fach, 811 m (2660 ft)
- bohemian forest — a mountain range between the SW Czech Republic and SE Germany. Highest peak: Arber, 1457 m (4780 ft)
- boston marriage — (especially in 19th-century New England) an intimate friendship between two women often maintaining a household together.
- boston massacre — an outbreak (1770) in Boston against British troops, in which a few citizens were killed
- bowel complaint — bowel disease or condition