15-letter words containing a, m, t
- bathythermogram — a record made by a bathythermograph.
- battery farming — the activity of using batteries for raising poultry
- beam-power tube — a vacuum tube in which the stream of electrons flowing to the plate is focused by the action of a set of auxiliary, charged elements, giving an increase in output power.
- beat one's gums — to talk much and idly
- beat one's meat — to masturbate
- bedtime reading — a book, magazine etc read at bedtime
- before the mast — as an apprentice seaman
- benefit payment — a payment of money by the government to people who are ill, unemployed, poor or who have children
- bergamot orange — a small Asian spiny rutaceous tree, Citrus bergamia, having sour pear-shaped fruit
- beside the mark — not striking the point aimed at
- best-ball match — a match, scored by holes, in which one player competing against two or more others must score lower than the lowest scoring opponent to win a hole.
- bioaccumulation — the process in which industrial waste, toxic chemicals, etc. gradually accumulate in living tissue
- biomathematical — relating to biomathematics
- bit-mapped font — a computer font whose characters are held in memory as series of dots.
- bitmapped image — a computer image that is held in memory as a series of colored dots in a grid, each dot represented by one or more bits.
- 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 guillemot — a common guillemot, Cepphus grylle: its summer plumage is black with white wing patches and its winter plumage white with greyish wings
- black marketeer — A black marketeer is someone who sells goods on the black market.
- 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)
- black september — a Palestinian Terrorist group, responsible for the assassinations of Israeli athletes at the Olympic Games at Munich in 1972
- black-marketeer — to sell articles in the black market.
- 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
- bouillotte lamp — a table lamp of the 18th century, having two or three adjustable candle brackets and a common shade sliding on a central shaft.
- bowel complaint — bowel disease or condition
- box the compass — to name the compass points in order
- brachystomatous — having a short proboscis, as certain insects.
- 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.
- break the mould — If you say that someone breaks the mould, you mean that they do completely different things from what has been done before or from what is usually done.
- 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
- british america — British North America.
- broadcast storm — (networking) A broadcast on a network that causes multiple hosts to respond by broadcasting themselves, causing the storm to grow exponentially in severity. See network meltdown.
- 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
- cadmium sulfate — a water-soluble compound, CdSO 4 , of colorless crystals, used as an antiseptic.
- caffe macchiato — a hot beverage consisting of espresso and a small amount of foamed milk.
- 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 citrate — the calcium salt of citric acid, used as a food additive
- calcium lactate — a salt of lactic acid. Formula: Ca(C3H5O3)2·5H2O
- calcium nitrate — a white, deliquescent solid, Ca(NO 3) 2 , used chiefly in the manufacture of fertilizers, fireworks, matches, and explosives.
- calcium oxalate — a white, crystalline powder, CaC 2 O 4 , insoluble in water, used in making oxalic acid.
- calcium sulfate — Calcium sulfate is a white crystalline salt, used as a tablet diluent.