12-letter words containing a, b, n, o
- bromoacetone — a colorless and highly toxic liquid, CH 2 BrCOCH 3 , used as a lachrymatory compound in tear gas and chemical warfare gas.
- bromomethane — methyl bromide.
- bronchospasm — an abnormal contraction of the bronchi resulting in restriction of the airway
- brontosaurus — any very large herbivorous quadrupedal dinosaur of the genus Apatosaurus, common in North America during Jurassic times, having a long neck and long tail: suborder Sauropoda (sauropods)
- bronze medal — A bronze medal is a medal made of bronze or bronze-coloured metal that is given as a prize to the person who comes third in a competition, especially a sports contest.
- brooks range — a mountain range in N Alaska. Highest peak: Mount Isto, 2761 m (9058 ft)
- brown bag it — to bring (one's own liquor) to a restaurant or club, especially one that has no liquor license.
- brown bagger — to bring (one's own liquor) to a restaurant or club, especially one that has no liquor license.
- brown canker — a fungous disease of roses, characterized by leaf and flower lesions, stem cankers surrounded by a reddish-purple border, and dieback.
- brown hackle — an artificial fly having a peacock herl body, golden tag and tail, and brown hackle.
- buccolingual — of or relating to the cheek and tongue.
- bud mutation — a variation produced by a genetic alteration in the bud such that the seeds produced by the resulting growth perpetuate the change in succeeding generations.
- buenos aires — the capital of Argentina, a major port and industrial city on the Río de la Plata estuary: became capital in 1880; university (1821). Pop: 13 349 000 (2005 est)
- buffalo gnat — any of various small North American blood-sucking dipterous insects of the genus Simulium and related genera: family Simuliidae
- bunco artist — a confidence trickster or con artist
- buoyancy aid — a type of usually foam-filled lifejacket designed for use in sports such as canoeing
- burial mound — a barrow
- burkina faso — an inland republic in W Africa: dominated by Mossi kingdoms (10th–19th centuries); French protectorate established in 1896; became an independent republic in 1960; consists mainly of a flat savanna plateau. Official language: French; Mossi and other African languages also widely spoken. Religion: mostly animist, with a large Muslim minority. Currency: franc. Capital: Ouagadougou. Pop: 17 812 961 (2013 est). Area: 273 200 sq km (105 900 sq miles)
- burnt almond — a sweet consisting of an almond enclosed in burnt sugar
- burnt orange — of a dark orange colour, sometimes due to calcination of orange pigment
- button quail — any small quail-like terrestrial bird of the genus Turnix, such as T. sylvatica (striped button quail), occurring in tropical and subtropical regions of the Old World: family Turnicidae, order Gruiformes (cranes, rails, etc)
- by reason of — If one thing happens by reason of another, it happens because of it.
- byelorussian — Byelorussian means belonging or relating to Byelorussia or to its people or culture.
- calibrations — Plural form of calibration.
- camp bastion — a large British military base in Helmand province, Afghanistan, built in 2006
- cancerphobia — an excessive fear of getting cancer
- cannabinoids — Plural form of cannabinoid.
- cannonballed — Simple past tense and past participle of cannonball.
- carbocations — Plural form of carbocation.
- carbocholine — carbachol.
- carbon black — a black finely divided form of amorphous carbon produced by incomplete combustion of natural gas or petroleum: used to reinforce rubber and in the manufacture of pigments and ink
- carbon brush — a small block of carbon used to convey current between the stationary and moving parts of an electric generator, motor, etc
- carbon cycle — the circulation of carbon between living organisms and their surroundings. Carbon dioxide from the atmosphere is synthesized by plants into plant tissue, which is ingested and metabolized by animals and converted to carbon dioxide again during respiration and decay
- carbon fiber — a very strong, lightweight synthetic fiber used in protective clothing, spacecraft components, racing shells, etc.
- carbon fibre — a black silky thread of pure carbon made by heating and stretching textile fibres and used because of its lightness and strength at high temperatures for reinforcing resins, ceramics, and metals, esp in turbine blades and for fishing rods
- carbon paper — Carbon paper is thin paper with a dark substance on one side. You use it to make copies of letters, bills, and other papers.
- carbon steel — steel whose characteristics are determined by the amount of carbon it contains
- carbon value — an empirical measurement of the tendency of a lubricant to form carbon when in use
- carbonaceous — of, resembling, or containing carbon
- carbonadoing — Present participle of carbonado.
- carbonatites — Plural form of carbonatite.
- carolina bay — any of the shallow, usually marshy, oval depressions found in the coastal plains of the eastern U.S. that are heavily forested and have rich soil.
- carry-on bag — a small bag that is taken inside an aircraft by hand personally by a passenger
- cassel brown — Vandyke brown.
- celebrations — Plural form of celebration.
- centerboards — Plural form of centerboard.
- cerebrations — Plural form of cerebration.
- cerebrotonia — a personality type characterized by restraint, alertness, and an intellectual approach to life: said to be correlated with an ectomorph body type
- charbroiling — Present participle of charbroil.
- chimneyboard — a partition or a cover to shut off a fireplace