15-letter words containing t, a, m, n
- 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
- break statement — (programming) A statement in the C programming language that transfers control out of the innermost enclosing switch, while, do, or for statement. The statement also exists in languages derived from C, such as C++ and Java.
- britannia metal — an alloy of low melting point consisting of tin with 5–10 per cent antimony, 1–3 per cent copper, and sometimes small quantities of zinc, lead, or bismuth: used for decorative purposes and for bearings
- brother-in-arms — a fellow soldier or comrade in a shared struggle
- brown-tail moth — a white moth, Nygmia phaerrhoea, having a brown tuft at the end of the abdomen, the larvae of which feed on the foliage of various shade and fruit trees.
- brownian motion — the irregular motion of small particles suspended in a liquid or a gas, caused by the bombardment of the particles by molecules of the medium: first observed by Robert Brown in 1827.
- button mangrove — a tropical tree, Conocarpus erectus, having small, reddish, conelike fruits and bark used in tanning.
- cabinet meeting — a regular meeting of the cabinet
- cactus geranium — a plant, Pelargonium echinatum, of the geranium family, native to southern Africa, having prickly stipules and white or reddish flowers.
- cadmean victory — a victory won with great losses to the victors
- cairngorm-stone — smoky quartz.
- calabash nutmeg — a tropical African shrub, Monodora myristica, whose oily aromatic seeds can be used as nutmegs: family Annonaceae
- calamine lotion — a soothing lotion containing calamine
- calcium nitrate — a white, deliquescent solid, Ca(NO 3) 2 , used chiefly in the manufacture of fertilizers, fireworks, matches, and explosives.
- campaign button — a disk-shaped pin worn by a supporter of a political candidate, usually bearing the name of the candidate and often a slogan or the candidate's picture.
- canterbury lamb — New Zealand lamb exported chilled or frozen to the United Kingdom
- cantilever beam — a long thick straight-sided piece of wood, metal, concrete, etc that is fixed at one end and is free at the other
- capitulationism — advocacy or approval of capitulation.
- car maintenance — the act of maintaining an automobile
- cardinal system — a system of coding navigational aids by shape, color, and number, according to their positions relative to navigational hazards.
- carmarthenshire — a county of S Wales, formerly part of Dyfed (1974–96): on Carmarthen Bay, with the Cambrian Mountains in the N: generally agricultural (esp dairying). Administrative centre: Carmarthen. Pop: 176 000 (2003 est). Area: 2398 sq km (926 sq miles)
- casement-window — a window sash opening on hinges that are generally attached to the upright side of its frame.
- castanospermine — a substance obtained from the Australian chestnut or black bean tree
- castrametations — Plural form of castrametation.
- cat-o'-mountain — catamountain
- catchment board — a public body concerned with the conservation and organization of water supply from a catchment area
- central america — an isthmus joining the continents of North and South America, extending from the S border of Mexico to the NW border of Colombia and consisting of Belize, Guatemala, Honduras, El Salvador, Nicaragua, Costa Rica, and Panama. Area: about 518 000 sq km (200 000 sq miles)
- chamber concert — a concert of chamber music
- champagne flute — a tall, thin champagne glass
- chatham islands — a group of islands in the S Pacific Ocean, forming a county of South Island, New Zealand: consists of the main islands of Chatham, Pitt, and several rocky islets. Chief settlement: Waitangi. Pop: 609 (2006 est). Area: 963 sq km (372 sq miles)
- chemoattractant — a chemical substance that provokes chemotaxis, esp one that causes a bacterium to move in the direction in which its concentration is increasing
- chemosterilants — Plural form of chemosterilant.
- chemotaxonomist — a specialist in the field of chemotaxonomy
- chimney-pot hat — a high silk hat; top hat.
- chinese mustard — brown mustard.
- church militant — those Christians on earth who are engaged in a continuous war against evil and the enemies of Christ.
- cinematographed — a motion-picture projector.
- cinematographer — A cinematographer is a person who decides what filming techniques should be used during the shooting of a film.
- cinematographic — a motion-picture projector.
- circumambiently — in a circumambient manner
- circumferential — of, at, or near the circumference; surrounding; lying along the outskirts.
- circumnavigated — Simple past tense and past participle of circumnavigate.
- circumnavigates — Third-person singular simple present indicative form of circumnavigate.