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20-letter words containing a, r, o, l, i

  • asexual reproduction — reproduction, as budding, fission, or spore formation, not involving the union of gametes.
  • astatic galvanometer — a galvanometer that is unaffected by the earth's magnetic field and is used for measuring small currents.
  • attic salt (or wit) — graceful, piercing wit
  • augur ill (or well) — to be a bad (or good) omen
  • automobile insurance — Automobile insurance is insurance coverage for cars.
  • auxiliary power unit — an additional engine fitted to an aircraft to operate when the main engines are not in use
  • backwards compatible — backward compatibility
  • bacteriochlorophylls — Plural form of bacteriochlorophyll.
  • ballistic trajectory — the path of an unpowered object, as a missile, moving only under the influence of gravity and possibly atmospheric friction and with its surface providing no significant lift to alter the course of flight.
  • basal cell carcinoma — a common and usually curable skin cancer that arises from epithelial cells and rarely metastasizes: often associated with overexposure to sunlight.
  • basal metabolic rate — the rate at which heat is produced by the body at rest, 12 to 14 hours after eating, measured in kilocalories per square metre of body surface per hour
  • basic encoding rules — (protocol, standard)   (BER) ASN.1 encoding rules for producing self-identifying and self-delimiting transfer syntax for data structures described in ASN.1 notations. BER is an self-identifying and self-delimiting encoding scheme, which means that each data value can be identified, extracted and decoded individually. Huw Rogers once described BER as "a triumph of bloated theory over clean implementation". He also criticises it as designed around bitstreams with arbitrary boundaries between data which can only be determined at a high level. Documents: ITU-T X.690, ISO 8825-1. See also CER, DER, PER.
  • basic lead carbonate — ceruse.
  • bats-wing coral-tree — a small tree, Erythrina verspertilio, of tropical and subtropical Australia with red flowers and leaves shaped like the wings of a bat
  • belgian shepherd dog — a medium-sized well-proportioned dog of a breed that resembles an Alsatian in appearance and is often used as a sheepdog or a guard dog
  • benoit b. mandelbrot — Benoit Mandelbrot
  • benzene hexachloride — a compound, C6H6Cl6, used as an insecticide
  • benztropine mesylate — a synthetic anticholinergic, C 21 H 25 NO⋅CH 4 O 3 S, used in the treatment of Parkinson's disease.
  • benzyl isoamyl ether — a colorless liquid, C 12 H 18 O, used in soap perfumes.
  • bernard of clairvaux — Saint. ?1090–1153, French abbot and theologian, who founded the stricter branch of the Cistercians in 1115
  • bimodal distribution — a frequency distribution with two modes
  • binary coded decimal — (data)   (BCD, packed decimal) A number representation where a number is expressed as a sequence of decimal digits and then each decimal digit is encoded as a four-bit binary number (a nibble). E.g. decimal 92 would be encoded as the eight-bit sequence 1001 0010. In some cases, the right-most nibble contains the sign (positive or negative). It is easier to convert decimal numbers to and from BCD than binary and, though BCD is often converted to binary for arithmetic processing, it is possible to build hardware that operates directly on BCD.
  • binary-coded decimal — a number in binary code written in groups of four bits, each group representing one digit of the corresponding decimal number
  • biological diversity — Biological diversity is the same as biodiversity.
  • bismarck archipelago — a group of over 200 islands in the SW Pacific, northeast of New Guinea: part of Papua New Guinea. Main islands: New Britain, New Ireland, Lavongai, and the Admiralty Islands. Chief town: Rabaul, on New Britain. Pop: 566 610 (2000). Area: 49 658 sq km (19 173 sq miles)
  • black-bellied plover — a large plover, Pluvialis squatarola, of both the New and Old Worlds, having black underparts when in nuptial plumage.
  • black-throated diver — a diving bird, Gavia arctica, found in Europe and Asia, and a rare summer visitor to the UK
  • blue ridge mountains — a mountain range in the eastern US, extending from West Virginia into Georgia: part of the Appalachian mountains. Highest peak: Mount Mitchell, 2038 m (6684 ft)
  • bobbin and fly frame — a roving machine used in the final stages of converting spun cotton fiber into yarn.
  • bolometric magnitude — the magnitude of a star derived either from the total energy that it radiates at all wavelengths or from the total energy of those of its wavelengths that are received on earth.
  • bomb disposal expert — an expert in bomb disposal
  • bone mineral density — a measurement of the amount of calcium and other minerals in a segment of bone, a higher mineral content indicating a higher bone density and strength, used to detect osteoporosis or monitor its treatment.
  • boulogne billancourt — a suburb of Paris, in N France.
  • boulogne-billancourt — an industrial suburb of SW Paris. Pop: 106 367 (1999)
  • bouvier des flandres — any of a breed of large, strong dog with a rough, wiry coat and pointed, erect ears
  • brachiocephalic vein — either of two major veins, formed by the merger of the subclavian and internal jugular veins, that drain blood from the head and arms.
  • breakerless ignition — electronic ignition.
  • breakfast television — Breakfast television refers to television programmes which are broadcast in the morning at the time when most people are having breakfast.
  • brittle bone disease — bone disorder
  • broadcast journalism — journalism as practiced in radio and television.
  • brown lung (disease) — a chronic disease of the lungs caused by inhalation of fine textile fibers, esp. cotton; byssinosis
  • buck's horn plantain — a Eurasian plant, Plantago coronopus, having leaves resembling a buck's horn: family Plantaginaceae
  • calcium hypochlorite — a white, crystalline compound, Ca(OCl) 2 , used as a disinfectant and bleaching agent.
  • california barracuda — a small, slender barracuda, Sphyraena argentea, of coastal seas from Alaska to Baja California, valued as a food fish.
  • california gold fern — an evergreen fern, Pityrogramma triangularis, growing from British Columbia to California, having the underside of the leaves covered with a deep yellow, powderlike substance.
  • cancel a reservation — If you cancel a reservation, you stop it because someone who has booked a room has informed you that they no longer wish to stay there.
  • canine leptospirosis — an often fatal intestinal disease in dogs, caused by any of several spirochetes of the genus Leptospira.
  • capacitive crosstalk — Capacitive crosstalk is a situation in which a signal on one line can cause a smaller version of the same signal on an adjacent line because of the capacitance between the lines.
  • cape prince of wales — a cape in W Alaska, on the Bering Strait opposite the coast of the extreme northeast of Russia: the westernmost point of North America
  • capillary attraction — a force that is the resultant of adhesion, cohesion, and surface tension in liquids which are in contact with solids, as in a capillary tube: when the cohesive force is greater, the surface of the liquid tends to rise in the tube, as with mercury; when the adhesive force is greater, the surface tends to be depressed, as with water
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