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16-letter words containing l, b, e, a

  • bidirectionality — capable of reacting or functioning in two, usually opposite, directions.
  • bill of exchange — (now chiefly in foreign transactions) a document, usually negotiable, containing an instruction to a third party to pay a stated sum of money at a designated future date or on demand
  • billy goat beard — a man's beard that is long under the chin and shaved elsewhere
  • bimetallic strip — a strip consisting of two metals of different coefficients of expansion welded together so that it buckles on heating: used in thermostats, etc
  • binomial theorem — a mathematical theorem that gives the expansion of any binomial raised to a positive integral power, n. It contains n + 1 terms: (x + a)n = xn + nxn–1a + [n(n–1)/2] xn–2a2 +…+ (nk) xn–kak + … + an, where (nk) = n!/(n–k)!k!, the number of combinations of k items selected from n
  • binuclear family — a social unit composed of an extended family, usually the children and subsequent spouses of divorced parents.
  • biodegradability — capable of decaying through the action of living organisms: biodegradable paper; biodegradable detergent.
  • bioenvironmental — pertaining to the environment of living organisms: Bioenvironmental engineers seek to reduce air and water pollution.
  • biological value — the nutritional effectiveness of the protein in a given food, expressed as the percentage used by the body of either the total protein consumed or the digestible protein available.
  • biotechnological — Biotechnological means relating to biotechnology.
  • biotic potential — the capacity of a population of organisms to increase in numbers under optimum environmental conditions.
  • bipolar disorder — Bipolar disorder is a mental illness in which a person's state of mind changes between extreme happiness and extreme depression.
  • bird's-eye maple — a cut of sugar maple wood used especially for veneers, having a wavy grain with many dark, circular markings.
  • bite one's nails — to chew off the ends of one's fingernails
  • black bottom pie — a rich pie with a rum- or whiskey-flavored chocolate filling, often with a crust of crushed gingersnaps, and topped with whipped cream.
  • black chokeberry — See under chokeberry (def 1).
  • black nightshade — a poisonous solanaceous plant, Solanum nigrum, a common weed in cultivated land, having small white flowers with backward-curved petals and black berry-like fruits
  • black woodpecker — a large woodpecker, Dryocopus martius, found in parts of Eurasia and Africa
  • black-eyed susan — any of several North American plants of the genus Rudbeckia, esp R. hirta, having flower heads of orange-yellow rays and brown-black centres: family Asteraceae (composites)
  • black-letter day — an unlucky or tragic day.
  • blacktailed deer — a mule deer, esp. the subspecies (Odocoileus hemionus columbianus) found from N Calif. to British Columbia
  • blackwater fever — a rare and serious complication of malaria, characterized by massive destruction of red blood cells, producing dark red or blackish urine
  • blasting gelatin — a type of plastic dynamite containing about 7 percent of a cellulose nitrate, used chiefly in underwater work.
  • bleaching powder — a white powder with the odour of chlorine, consisting of chlorinated calcium hydroxide with an approximate formula CaCl(OCl).4H2O. It is used in solution as a bleaching agent and disinfectant
  • blended learning — the use of both classroom teaching and on-line learning
  • blenheim spaniel — a variety of toy spaniel that is white with reddish-brown spots
  • blind man's rule — a carpenter's rule having large numbers to permit its reading in dim light.
  • blind salamander — any of several North American salamanders, especially of the genera Typhlotriton, Typhlomolge, and Haideotriton, that inhabit underground streams or deep wells and have undeveloped eyes and scant pigmentation.
  • block and tackle — a hoisting device in which a rope or chain is passed around a pair of blocks containing one or more pulleys. The upper block is secured overhead and the lower block supports the load, the effort being applied to the free end of the rope or chain
  • blow one's stack — to lose one's temper; fly into a rage
  • blue dawn-flower — a tropical American vine, Ipomoea acuminata, of the morning glory family, having large, funnel-shaped flowers that turn from blue to pink.
  • blue in the face — the pure color of a clear sky; the primary color between green and violet in the visible spectrum, an effect of light with a wavelength between 450 and 500 nm.
  • blue-green algae — any of a division (Cyanophycota) of photosynthetic monerans, microorganisms that contain a blue pigment which obscures the chlorophyll; cyanobacteria
  • blue-winged teal — a small North American duck (Anas discors) found on ponds and rivers
  • bluegrass region — a region in central Kentucky, famous for its horse farms and fields of bluegrass.
  • boarding kennels — a place where dog owners can pay to have their dogs looked after while they are away
  • bomb calorimeter — a device for determining heats of combustion by igniting a sample in a high pressure of oxygen in a sealed vessel and measuring the resulting rise in temperature: used for measuring the calorific value of foods
  • bon gre, mal gre — whether willing or not; willy-nilly.
  • bonneville flats — an area of salt flats in the W part of Great Salt Lake Desert, in NW Utah: site of automobile speed tests.
  • boolean-operator — any operation in which each of the operands and the result take one of two values.
  • bootstrap loader — (operating system)   A short program loaded from non-volatile storage and used to bootstrap a computer. On early computers great efforts were expended on making the bootstrap loader short, in order to make it easy to toggle in via the front panel switches. It was just clever enough to read in a slightly more complex program (usually from punched cards or paper tape), to which it handed control. This program in turn read the application or operating system from a magnetic tape drive or disk drive. Thus, in successive steps, the computer "pulled itself up by its bootstraps" to a useful operating state. Nowadays the bootstrap loader is usually found in ROM or EPROM, and reads the first stage in from a fixed location on the disk, called the "boot block". When this program gains control, it is powerful enough to load the actual OS and hand control over to it. A diskless workstation can use bootp to load its OS from the network.
  • bordelaise sauce — a dark sauce made from meat stock, flour, wine, onions, seasonings, etc., served over broiled meat
  • boreal chickadee — a brown-capped, black-throated chickadee (Parus hudsonicus) found near the Atlantic coast from Labrador to N New York
  • bornholm disease — an epidemic virus infection characterized by pain round the base of the chest
  • botanical garden — a place where collections of plants and trees are kept for scientific study and exhibition
  • bouillotte table — a small round table of the 18th century, having around its top a gallery within which a bouchon could be set for the playing of card games.
  • bouquet larkspur — a plant, Delphinium grandiflorum, of eastern Asia, having blue or whitish flowers and hairy fruit.
  • bowman's capsule — a membranous, double-walled capsule surrounding a glomerulus of a nephron.
  • bracknell forest — a unitary authority in SE England, in E Berkshire. Pop: 110 100 (2003 est). Area: 109 sq km (42 sq miles)
  • braille embosser — Braille printer
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