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19-letter words containing a, b, o, r, t

  • negation by failure — An extralogical feature of Prolog and other logic programming languages in which failure of unification is treated as establishing the negation of a relation. For example, if Ronald Reagan is not in our database and we asked if he was an American, Prolog would answer "no".
  • neighbourhood watch — a scheme under which members of a community agree together to take responsibility for keeping an eye on each other's property, as a way of preventing crime
  • non-transferability — to convey or remove from one place, person, etc., to another: He transferred the package from one hand to the other.
  • normal distribution — a theoretical frequency distribution represented by a normal curve.
  • observation balloon — a balloon that is used for gathering information and reconnaissance purposes and spotting aircraft
  • okeechobee waterway — a waterway in S Florida from the Atlantic Ocean to the Gulf of Mexico. 155 miles (244 km) long.
  • olive-backed thrush — Swainson's thrush.
  • on the baker's list — in good health
  • on-the-job training — apprenticeship, learning by doing
  • optical double star — two stars that appear as one if not viewed through a telescope with adequate magnification, such as two stars that are separated by a great distance but are nearly in line with each other and an observer (optical double star) or those that are relatively close together and comprise a single physical system (physical double star)
  • oxyacetylene burner — a blowpipe for cutting or welding metals at high temperatures
  • palomar observatory — an astronomical observatory situated on Palomar Mountain in S California, having a 200-inch (508-cm) reflecting telescope and a 48-inch (122-cm) Schmidt telescope.
  • pancreatic fibrosis — cystic fibrosis.
  • party-column ballot — Indiana ballot.
  • patrol torpedo boat — PT boat.
  • perfoliate bellwort — a slender plant, Uvularia perfoliata, of the lily family, of eastern North America, having pale yellow, bell-shaped flowers.
  • phenylthiocarbamide — a crystalline, slightly water-soluble solid, C 6 H 5 NHCSNH 2 , that is either tasteless or bitter, depending upon the heredity of the taster, and is used in medical genetics and as a diagnostic.
  • pointe-aux-trembles — a city in S Quebec, in E Canada, N of Montreal, on the St. Lawrence.
  • potassium carbonate — a white, granular, water-soluble powder, K 2 CO 3 , used chiefly in the manufacture of soap, glass, and potassium salts.
  • predicate objective — objective complement.
  • profitability study — a study of how much profit a company, organization, etc, makes or how profitable it is
  • protease inhibitors — a drug that inhibits the action of protease, especially any of a class of antiviral drugs that prevent the cleavage and replication of HIV proteins.
  • rag-tag and bobtail — the riffraff; rabble: The ragtag and bobtail of every nation poured into the frontier in search of gold.
  • registration number — number on vehicle licence plate
  • relational database — an electronic database comprising multiple files of related information, usually stored in tables of rows (records) and columns (fields), and allowing a link to be established between separate files that have a matching field, as a column of invoice numbers, so that the two files can be queried simultaneously by the user.
  • removable cartridge — a hard disk enclosed in a case that can be removed from the disk drive, having more storage than floppy disks.
  • republic of vietnam — the name (from 1955–75) for South Vietnam, as an independent republic, following the division of the country in 1954 into North Vietnam and South Vietnam
  • research laboratory — place for scientific experimentation
  • reversible reaction — a reaction that, depending on ambient conditions, can proceed in either of two directions: the production of the reaction products from the reactants, or the production of the original reactants from the formed reaction products. Compare equilibrium (def 4).
  • saber-toothed tiger — any of several extinct members of the cat family Felidae from the Oligocene to Pleistocene Epochs, having greatly elongated, saberlike upper canine teeth.
  • sabre-toothed tiger — any of various extinct Tertiary felines of the genus Smilodon and related genera, with long curved upper canine teeth
  • saddle-billed stork — a large stork, Ephippiorhynchus senegalensis, of West Africa, having a white and black body and a long, red and black bill.
  • sb's spiritual home — your spiritual home is the place where you feel that you belong, usually because your ideas or attitudes are the same as those of the people who live there
  • seat belt tensioner — A seat belt tensioner is a device in a vehicle that pulls a seat belt tight if there is a sudden movement or stop.
  • short-tail business — Short-tail business is insurance business where it is known that claims will be made and settled quickly.
  • shortness of breath — respiratory difficulty
  • siberian forest cat — a breed of powerfully-built long-haired cat, typically tabby with a white ruff and white paws
  • simple carbohydrate — a carbohydrate, as glucose, that consists of a single monosaccharide unit.
  • southern crab apple — a tree, Malus angustifolia, of the eastern U.S., having oblong leaves, fragrant, pink or rose-colored flowers, and small, round, yellow-green fruit.
  • stabilization print — a print made by the stabilization process.
  • standing broad jump — a jump for distance from a standing position.
  • stanford-binet test — a revised version of the Binet-Simon scale, prepared at Stanford University for use in the U.S.
  • stationery cupboard — a cupboard where things like paper, pens and paper clips are kept
  • stochastic variable — a random variable.
  • strait of gibraltar — a narrow strait between the S tip of Spain and the NW tip of Africa, linking the Mediterranean with the Atlantic
  • subtractive process — a process of color photography in which the colors are formed by combination of cyan, yellow, and magenta lights.
  • take care of sth/sb — If you take care of someone or something, you look after them and prevent them from being harmed or damaged.
  • telescopic umbrella — an umbrella having parts that telescope
  • the admiralty board — (formerly) a department of the British Ministry of Defence, responsible for the administration and planning of the Royal Navy
  • the labour movement — a movement campaigning for the interests of working people, for example for better working conditions, better treatment from employers, etc
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