17-letter words containing n, a, i, r
- bacteriorhodopsin — a purple protein containing retinal and found in the plasma membrane of certain bacteria (genus Halobacterium): it directly supplies electrochemical energy from sunlight
- baggage screening — the procedure whereby baggage is electronically screened at an airport before it is allowed on the plane
- balanced literacy — a method of teaching reading in which phonics and whole language approaches are both used to maximize student learning.
- banking principle — the principle that bank notes are a form of credit and should be issued freely in order to maintain an elastic currency.
- barbed wire fence — a fence constructed from strong wire that has sharply pointed barbs at close intervals along its length
- barrel distortion — distortion of an image produced by an optical system that causes straight lines at image margins to bulge outwards
- barrow-in-furness — an industrial town in NW England, in S Cumbria. Pop: 47 194 (2001)
- bartholin's gland — either of two small glands near the vaginal opening: during sexual excitement they secrete a mucous lubricating substance
- base lending rate — a minimum interest rate on which financial institutions base the rates they use for lending
- baseboard heating — a heating system by pipes, through which steam or hot water circulates, near the base of the walls of rooms
- basic proposition — protocol (def 6).
- bathroom fittings — plumbing fixtures or accessories suitable for use in a bathroom
- battle of britain — (in World War II) the series of aerial combats that took place between British and German aircraft during the autumn of 1940 and that included the severe bombardment of British cities.
- be running scared — If you say that a person or group is running scared, you mean that they are frightened of what someone might do to them or what might happen.
- beat one's brains — to try hard to remember, understand, or solve something
- beer and skittles — enjoyment or pleasure
- bell-hanger's bit — a bit for drilling small holes through studs or the like.
- benjamin banneker — Benjamin, 1731–1806, U.S. mathematician, natural historian, and astronomer.
- benjamin franklin — Aretha [uh-ree-thuh] /əˈri θə/ (Show IPA), born 1942, U.S. singer.
- benoit mandelbrot — (person) /ben'wa man'dl-bro/ Benoit B. Mandelbrot. The IBM scientist who wrote several original books on fractals and gave his name to the set he was discovered, the Mandelbrot set and coined the term "fractal" in 1975 from the Latin fractus or "to break".
- beyond comparison — outstanding, without equal
- bighorn mountains — range of the Rocky Mountains in N Wyo. and S Mont.: highest peak, 13,165 ft (4,013 m)
- bill of adventure — a certificate made out by a merchant to show that goods handled by him and his agents are the property of another party at whose risk the dealing is done
- bill of attainder — (formerly) a legislative act finding a person guilty without trial of treason or felony and declaring him attainted
- binary opposition — a relation between the members of a pair of linguistic items, as a pair of distinctive features, such that one is the absence of the other, as voicelessness and voice, or that one is at the opposite pole from the other, as stridency and mellowness.
- binocular rivalry — the phenomenon whereby one is unable to see simultaneously different images presented one to each eye; usually in some areas of the eye the image presented to the left eye is seen, in others that presented to the right eye
- biological parent — a parent who has conceived (biological mother) or sired (biological father) rather than adopted a child and whose genes are therefore transmitted to the child.
- biotransformation — the metabolizing of some substance, esp. a drug, in the body
- birth of a nation — an American film (1915), directed by D. W. Griffith.
- bitter almond oil — almond oil (def 2).
- bitter-almond-oil — Also called sweet almond oil, expressed almond oil. a colorless to pale yellow fatty oil expressed from the seeds of the sweet almond, used in preparing perfumes and confections.
- black renaissance — a renewal and flourishing of black literary and musical culture during the years after World War I in the Harlem section of New York City.
- blackout curtains — thick, lined curtains designed to shut out all daylight and keep a room in complete darkness
- blind carbon copy — a duplicate of anything written or typed, or a copy of an email or other electronic document, that is sent to someone whose name is not visible to the primary addressee. Abbreviation: bcc.
- blood transfusion — A blood transfusion is a process in which blood is injected into the body of a person who is badly injured or ill.
- board and lodging — If you are provided with board and lodging, you are provided with food and a place to sleep, especially as part of the conditions of a job.
- board-and-shingle — a small dwelling with wooden walls and a shingle roof
- boat-billed heron — a nocturnal, tropical American wading bird (Cochlearius cochlearius) with a large, broad bill: it is the only member of a family (Cochleariidae) of wading birds
- boatswain's chair — a seat consisting of a short flat board slung from ropes, used to support a person working on the side of a vessel or in its rigging
- bohemian brethren — a Protestant Christian sect formed in the 15th century from various Hussite groups, which rejected oaths and military service and advocated a pure and disciplined spiritual life. It was reorganized in 1722 as the Moravian Church
- book depreciation — Book depreciation is depreciation in a company's internal financial records that is different from the amount that is used for taxes.
- boolean operation — any operation in which each of the operands and the result take one of two values.
- bradford spinning — a wool-spinning method in which the fibers are oiled prior to combing and subsequently spun into worsted yarn.
- brain haemorrhage — bleeding into the brain
- branch prediction — (processor, algorithm) A technique used in some processors with instruction prefetch to guess whether a conditional branch will be taken or not and prefetch code from the appropriate location. When a branch instruction is executed, its address and that of the next instruction executed (the chosen destination of the branch) are stored in the Branch Target Buffer. This information is used to predict which way the instruction will branch the next time it is executed so that instruction prefetch can continue. When the prediction is correct (and it is over 90% of the time), executing a branch does not cause a pipeline break. Some later CPUs simply prefetch both paths instead of trying to predict which way the branch will go. An extension of the idea of branch prediction is speculative execution.
- brazilian emerald — a green variety of tourmaline used as a gem: not a true emerald.
- brazilian peridot — a light yellowish-green tourmaline used as a gem: not a true peridot.
- brazilian rhatany — See under rhatany (def 1).
- breakdown service — a service that provides assistance to motorists who break down
- breathe life into — revive, rejuvenate