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18-letter words containing o, r, a, t, e

  • auxiliary equation — characteristic equation (def 1b).
  • auxiliary-equation — Mathematics. the characteristic polynomial of a given matrix, equated to zero. Also called auxiliary equation. an equation with one variable and equated to zero, which is derived from a given linear differential equation and in which the coefficient and power of the variable in each term correspond to the coefficient and order of a derivative in the original equation.
  • aviation insurance — Aviation insurance is insurance cover for aircraft, and for damage, injury, or loss of life or cargo while traveling on aircraft.
  • avoirdupois weight — a British and American system of weights based on a pound of 16 ounces
  • axis of revolution — an axis in a plane, about which an area is revolved to form a solid of revolution.
  • bachelor apartment — a flat consisting of one room that is used as a sitting room and bedroom, as well as a kitchenette and a bathroom
  • bachelor's-buttons — any of various plants of the daisy family with button-like flower heads
  • bachelorette party — A bachelorette party is a party for a woman who is getting married very soon, to which only women are invited.
  • back end generator — (tool)   (BEG) A code generator developed by H. Emmelmann et al at GMD, University Karlsruhe, Germany. Its input language is Back End Generator Language (BEGL).
  • back to square one — If you are back to square one, you have to start dealing with something from the beginning again because the way you were dealing with it has failed.
  • back/down to earth — If you come down to earth or back to earth, you have to face the reality of everyday life after a period of great excitement.
  • barbershop quartet — a group of four singers who perform a style of music sung in four-part harmony
  • bargaining counter — A bargaining counter is the same as a bargaining chip.
  • baritone saxophone — the second lowest instrument in the family of saxophones
  • barium thiosulfate — a white, crystalline, water-insoluble, poisonous solid, BaS 2 O 3 ⋅H 2 O, used chiefly in the manufacture of explosives, matches, paints, and varnishes.
  • basal conglomerate — a conglomerate deposited on an erosion surface and constituting the bottom layer of a stratigraphic series.
  • battery eliminator — eliminator (def 2).
  • battery-eliminator — a person or thing that eliminates.
  • battle of clontarf — a battle fought in 1014, near Dublin, in the Republic of Ireland, in which the Danes were defeated by the Irish but the Irish king, Brian Boru, was killed
  • battle of omdurman — a battle (1898) in which the Mahdi's successor and his Ansar followers were defeated by Lord Kitchener's British forces
  • battleground-state — a state of the U.S. in which the Democratic and Republican candidates both have a good chance of winning and that is considered key to the outcome of a presidential election: the swing states of Ohio and Indiana.
  • beefsteak mushroom — an edible bracket fungus, Fistulina hepatica, that grows on trees and can rot the heartwood of living oaks and chestnuts.
  • behaviour patterns — the characteristic ways in which a person or animal acts
  • bel and the dragon — a book of the Apocrypha that is included as chapter 14 of Daniel in the Douay Bible.
  • benchmark position — a public service job used for comparison with a similar position, such as a position in commerce, for wage settlements
  • bernard montgomery — Bernard Law, 1st Viscount Montgomery of Alamein ("Monty") 1887–1976, British field marshal: World War II commander of British 8th Army in Africa and Europe.
  • bernard of menthon — Saint(11th cent.); Fr. monk who founded hospices in the Swiss Alps: his day is May 28
  • bernoulli equation — Hydrodynamics. Bernoulli's theorem (def 2).
  • best-ball foursome — a match, scored by holes, between two pairs of players, in which the score of the lower scoring member of each pair is taken as their score for the hole.
  • bichromate process — any of several methods of photography in which the light-sensitive medium is alkaline bichromate associated with a colloid such as gum, albumen, or gelatin.
  • biodiversification — the process by which the diversity of plants or animals develops or is increased within a particular region or group of organisms.
  • bioinstrumentation — the use of instruments, as sensors, to detect and measure certain body functions, as of persons in spaceflight, and transmit the data to a point where it is evaluated
  • biological parents — the biological mother and father of a child
  • biological therapy — biotherapy
  • birds of a feather — If you refer to two people as birds of a feather, you mean that they have the same interests or are very similar.
  • biz-core stability — (security)   Internet security products which secure the business core.
  • black-necked stork — a large Australian stork, Xenorhyncus asiaticus, having a white plumage, dark green back and tail, and red legs
  • board of directors — A company's board of directors is the group of people elected by its shareholders to manage the company.
  • board of education — a group or agency with responsibility for education
  • board of elections — a bipartisan board appointed usually by local authorities and charged with control of elections and voting procedure.
  • borax pentahydrate — a white, crystalline, water-soluble solid, Na 2 B 4 O 7 ⋅5H 2 O, used chiefly for killing weeds, as a water softener, and as a disinfectant and deodorizing agent.
  • bore the pants off — to bore extremely
  • borosilicate glass — any of a range of heat- and chemical-resistant glasses, such as Pyrex, prepared by fusing together boron(III) oxide, silicon dioxide, and, usually, a metal oxide
  • boston brown bread — a dark, sweetened, steamed bread made of cornmeal, rye or wheat flour, etc., and molasses
  • bottom dead center — Bottom dead center is the point at which the piston of an engine is nearest to the axis of the crankshaft. On a vertical engine, this is the lowest point that the piston reaches.
  • bottom dead centre — the position of the crank of a reciprocating engine when the piston is at its nearest point to the crankshaft
  • bounty-fed farmers — farmers who benefit from subsidies
  • bourdon-tube gauge — an instrument for measuring the pressure of gases or liquids, consisting of a semicircular or coiled, flexible metal tube attached to a gauge that records the degree to which the tube is straightened by the pressure of the gas or liquid inside.
  • brand-name product — A brand-name product is one which is made by a well-known manufacturer and has the manufacturer's label on it.
  • breach of contract — the act of breaking the conditions of a contract
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