12-letter words containing a, p, r, e
- azathioprine — a synthetic drug that suppresses the normal immune responses of the body and is administered orally during and after organ transplantation and also in certain types of autoimmune disease. Formula: C9H7N7O2S
- b-s particle — a neutral meson with a mass 10,507 times that of the electron and a mean lifetime of approximately 1.6 X 10 -12 seconds.
- bach trumpet — a modern small three-valved trumpet for playing clarino passages in Bach's music
- bachelor pad — a flat in which a bachelor lives
- bachelorship — the state of being a bachelor; bachelorhood
- back-slapper — the practice of making a loud and effusive display of friendliness, cordiality, etc., as by slapping persons on the back.
- backpressure — a resistant pressure exerted by liquid or gas against the forward motion or flow of an exhaust or pipe system: Careful control of backpressure ensures an even supply of oil from the well.
- bad-tempered — Someone who is bad-tempered is not very cheerful and gets angry easily.
- badger plane — a plane for finishing rabbets or the like.
- bald cypress — a tree, Taxodium distichum, of swampy areas of the southern U.S., having featherlike needles and cone-shaped projections growing up from the roots, yielding a hardwood used in construction, shipbuilding, etc.
- ballad opera — an opera consisting of popular tunes to which appropriate words have been set, interspersed with spoken dialogue
- ballot paper — A ballot paper is a piece of paper on which you indicate your choice or opinion in an election or ballot.
- bankruptcies — Plural form of bankruptcy.
- baptisteries — Plural form of baptistery.
- barbecue pit — a trench in which wood or charcoal is burned for barbecuing
- barge couple — either of a pair of outside rafters along the gable end of a roof
- barophoresis — the diffusion of suspended particles at a rate dependent on external forces
- baroreceptor — a collection of sensory nerve endings, principally in the carotid sinuses and the aortic arch, that monitor blood pressure changes in the body
- base pairing — the hydrogen bonding that occurs between complementary nitrogenous bases in the two polynucleotide chains of a DNA molecule
- base-pairing — the process of binding separate DNA sequences by base pairs.
- basidiospore — one of the spores, usually four in number, produced in a basidium
- bathyspheres — Plural form of bathysphere.
- battery-park — The, a park at the S end of Manhattan, in New York City.
- battle group — a group of warships usually consisting of at least one aircraft carrier, other surface ships, submarines, landing craft, etc
- beamsplitter — Alternative spelling of beam splitter.
- bean sprouts — the sprouts of newly germinated mung beans, eaten as a vegetable, esp in Chinese dishes
- bearing pile — a foundation pile that supports weight vertically
- beat the rap — If you beat the rap, you avoid being blamed for something wrong that you have done.
- beauty strip — a narrow forest corridor left uncut alongside a road or body of water.
- beer parlour — a room in a tavern, hotel, etc in which beer is served
- benzal group — the bivalent group C 7 H 6 –, derived from benzaldehyde.
- benzoapyrene — a carcinogenic chemical in tobacco smoke
- bernese alps — a mountain range in SW Switzerland, the N central part of the Alps. Highest peak: Finsteraarhorn, 4274 m (14 022 ft)
- bernina alps — a mountain group in SE Switzerland, extending from the Rhateian Alps on the Italian border. Highest peak, Piz Bernina, 13,304 feet (4055 meters).
- bernina pass — a pass in the Alps between SE Switzerland and N Italy, east of Piz Bernina. Height: 2323 m (7622 ft)
- bicarpellary — (of an ovary) having two carpels
- biogeography — the branch of biology concerned with the geographical distribution of plants and animals
- biparentally — from a biparental point of view
- bipropellant — a rocket propellant consisting of two substances, usually a fuel and an oxidizer
- birth parent — a biological mother (birth mother) or biological father (birth father) a biological parent.
- bitter apple — colocynth
- black copper — a regulus of 95-percent-pure copper, produced in a blast furnace by smelting oxidized copper ores.
- black papers — unofficial papers criticizing government policy
- black pepper — Black pepper is pepper which is dark in colour and has been made from the dried berries of the pepper plant, including their black outer cases.
- black pewter — pewter composed of 60 percent tin and 40 percent lead.
- black powder — gunpowder as used in sports involving modern muzzleloading firearms
- black prince — Edward2 (Prince of Wales)
- black spruce — a coniferous tree, Picea mariana, of the northern regions of North America, growing mostly in cold bogs and having dark green needles
- bladder kelp — any of various giant brown algae with air bladders that buoy up the leafy portions
- blastosphere — blastula