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

  • automatic exposure — the automatic adjustment of the lens aperture and shutter speed of a camera by a control mechanism
  • 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's-buttons — any of various plants of the daisy family with button-like flower heads
  • 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.
  • 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.
  • 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.
  • 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
  • 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.
  • 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
  • board of education — a group or agency with responsibility for education
  • 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 security — an act that violates a country, area, or building's security measures
  • broadcasting house — any of a number of buildings in the UK from which the BBC broadcasts or has broadcast
  • brute force attack — (cryptography)   A method of breaking a cipher (that is, to decrypt a specific encrypted text) by trying every possible key. The quicker the brute force attack, the weaker the cipher. Feasibility of brute force attack depends on the key length of the cipher, and on the amount of computational power available to the attacker. Brute force attack is impossible against the ciphers with variable-size key, such as a one-time pad cipher.
  • building materials — materials such as bricks, cement, timber, etc
  • burst at the seams — to break, break open, or fly apart with sudden violence: The bitter cold caused the pipes to burst.
  • butler's sideboard — a sideboard, often with a fall front, having on its top a china cabinet with glazed doors.
  • butter-and-egg man — a prosperous businessman from a small town or a farmer who spends his money ostentatiously on visits to a big city.
  • butterhead lettuce — a major group of lettuce varieties having soft, pliable leaves and small, loose heads, including bibb and Boston lettuce
  • cabernet sauvignon — a black grape originally grown in the Bordeaux area of France, and now throughout the wine-producing world
  • calcium propionate — a white, water-soluble powder, CaC 6 H 10 O 4 , used in bakery products to inhibit the growth of fungi.
  • california current — a cold current originating in the northern part of the Pacific Ocean, flowing SE along the coast of W North America.
  • campaign furniture — furniture, as chests or desks, having metal hinges on the corners and handles on the sides.
  • cash-for-questions — of, involved in, or relating to a scandal in which some MPs were accused of accepting bribes to ask particular questions in Parliament
  • casualty insurance — insurance providing coverage against accident and property damages, as automobile, theft, liability, and explosion insurance, but not including life insurance, fire insurance, or marine insurance.
  • catalogue raisonne — a descriptive catalogue, esp one covering works of art in an exhibition or collection
  • caterpillar hunter — any of various carabid beetles of the genus Calosoma, of Europe and North America, which prey on the larvae of moths and butterflies
  • cellular automaton — (algorithm, parallel)   (CA, plural "- automata") A regular spatial lattice of "cells", each of which can have any one of a finite number of states. The state of all cells in the lattice are updated simultaneously and the state of the entire lattice advances in discrete time steps. The state of each cell in the lattice is updated according to a local rule which may depend on the state of the cell and its neighbors at the previous time step. Each cell in a cellular automaton could be considered to be a finite state machine which takes its neighbours' states as input and outputs its own state. The best known example is J.H. Conway's game of Life.
  • cellular telephone — a mobile phone
  • centrifugal clutch — an automatic clutch in which the friction surfaces are engaged by weighted levers acting under centrifugal force at a certain speed of rotation
  • chambered nautilus — nautilus (def 1).
  • character-building — improving certain good or useful traits in a person's character, esp self-reliance, endurance, and courage
  • charge conjugation — the mathematical operation of replacing every elementary particle by its antiparticle. Symbol: C.
  • charge of quarters — a member of the armed forces who handles administration in his or her unit, esp after duty hours
  • chartered surveyor — (in Britain) a surveyor who is registered with the Royal Institution of Chartered Surveyors as having the qualifications, training, and experience to satisfy their professional requirements
  • chocolate-coloured — dark brown
  • cicatricial tissue — scar tissue.
  • circular breathing — a technique for sustaining a phrase on a wind instrument, using the cheeks to force air out of the mouth while breathing in through the nose
  • circulating medium — currency serving as a medium of exchange
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