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17-letter words containing o, r, a, i

  • attorneys-in-fact — a person authorized by power of attorney to act on the authorizer's behalf outside a court of law.
  • attraction sphere — centrosphere (sense 1)
  • audio description — a facility provided for visually impaired people in which a film, television programme, or play is described through audio technology
  • aurea mediocritas — the golden mean.
  • australian ballot — an official ballot listing candidates for election to public office and issues, levies, etc., distributed inside the polling place to be marked by the voter in secret: it originated in Australia and is widely used in the U.S.
  • australopithecine — any of various extinct apelike primates of the genus Australopithecus and related genera, remains of which have been discovered in southern and E Africa. Some species are estimated to be over 4.5 million years old
  • authoritativeness — having due authority; having the sanction or weight of authority: an authoritative opinion.
  • authority control — the establishment and maintainance of consistent forms of terms, as of names, subjects, and titles, to be used as headings in bibliographic records.
  • autocorrelational — Of or pertaining to autocorrelation.
  • automatic writing — writing performed without apparent intent or conscious control, especially to achieve spontaneity or uncensored expression.
  • auxiliary storage — secondary storage.
  • average deviation — a measure of dispersion, computed by taking the arithmetic mean of the absolute values of the deviations of the functional values from some central value, usually the mean or median.
  • aviation industry — a collective term for the companies involved in air transport
  • avoirdupois pound — a pound weighing 16 ounces
  • axis of ordinates — y-axis (def 1).
  • axis-of-ordinates — y-axis (def 1).
  • babi yar symphony — a symphony (1962) by Dimitri Dimitrievich Shostakovich.
  • back on the rails — If something is back on the rails, it is beginning to be successful again after a period when it almost failed.
  • bacon's rebellion — an unsuccessful uprising by frontiersmen in Virginia in 1676, led by Nathaniel Bacon against the colonial government in Jamestown.
  • bacteriologically — In a bacteriological manner; with respect to bacteriology.
  • bacteriorhodopsin — a purple protein containing retinal and found in the plasma membrane of certain bacteria (genus Halobacterium): it directly supplies electrochemical energy from sunlight
  • baltimore clipper — a small, fast American sailing vessel of the early 19th century, having a sharp hull form and two masts with a pronounced rake and carrying a brig or schooner rig.
  • bar-tailed godwit — a large wader, Limosa lapponica, of the family Scolopacidae which, in migrating from Alaska to New Zealand, makes the longest journey without stopping for food taken by any animal
  • barber of seville — Italian Il barbiere di Siviglia. a comic opera (1816) by Gioacchino Rossini based on a comedy (1775) by Beaumarchais.
  • 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
  • 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 a box of birds — to be very well indeed
  • beardmore glacier — one of the largest glaciers, in central Antarctica. About 125 miles (200 km) long.
  • beat one's brains — to try hard to remember, understand, or solve something
  • behaviour therapy — any of various means of treating psychological disorders, such as desensitization, aversion therapy, and instrumental conditioning, that depend on the patient systematically learning new modes of behaviour
  • bell laboratories — One of AT&T's research sites, in Murray Hill, New Jersey, USA. It was the birthplace of the transistor, Unix, C and C++ and the current home of research on Plan 9 and ODE.
  • bellflower family — the plant family Campanulaceae, characterized by chiefly herbaceous plants having simple, alternate leaves and solitary or clustered flowers with a bell-shaped, five-lobed, often blue or purple corolla, and including the harebell, Canterbury bells, and balloon flower.
  • 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 father — the man whose semen fertilized the ovum from which a child was born
  • biological marker — a substance, physiological characteristic, gene, etc that indicates, or may indicate, the presence of disease, a physiological abnormality or a psychological condition
  • biological mother — the mother who gave birth to a child
  • 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.
  • biological rhythm — biorhythm.
  • biopharmaceutical — of or relating to drugs produced using biotechnology
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