20-letter words containing a, l, t, i, u, d
- quantum field theory — any theory in which fields are treated by the methods of quantum mechanics; each field can then be regarded as consisting of particles of a particular kind, which may be created and annihilated.
- queen elizabeth land — an area of British Antarctic Territory, situated south of Weddell Sea and between longitudes 20°W and 80°W, stretching from Filchner-Ronne Ice Shelf to the South Pole. Area: 437 000 sq km (169 000 sq miles)
- radial triangulation — triangulation based upon lines radiating from the center of each of two overlapping photographs to certain objects appearing on each photograph.
- refuse disposal unit — a unit or part of a sink that disposes of waste food, etc, by grinding
- ring wall foundation — A ring wall foundation is a base made of concrete, used to put large tanks on.
- shareholders' equity — Shareholders' equity is the total amount of ownership investment in a company.
- shoulder-length hair — hair that reaches a person's shoulders
- social security card — a card that contains details of a person's social security number
- sodium fluoroacetate — a white, amorphous, water-soluble, poisonous powder, C 2 H 2 FO 2 Na, used as a rodenticide.
- sodium metabisulfite — Sodium metabisulfite is a crystalline compound used as an antioxidant.
- sound-and-light show — a nighttime spectacle or performance, at which a building, historic site, etc., is illuminated and the historic significance is imparted to spectators by means of narration, sound effects, and music.
- south orkney islands — an uninhabited group of islands in the S Atlantic, southeast of Cape Horn: formerly a dependency of the Falkland Islands; part of the British Antarctic Territory since 1962 (claims are suspended under the Antarctic Treaty). Area: 621 sq km (240 sq miles)
- subjective idea-list — a doctrine that the world has no existence independent of sensations or ideas.
- suitland-silver hill — a city in central Maryland, near Washington, D.C.
- terrestrial guidance — a method of missile or rocket guidance in which the flight path is controlled by reference to the strength and direction of the earth's gravitational or magnetic field
- thermal conductivity — the amount of heat per unit time per unit area that can be conducted through a plate of unit thickness of a given material, the faces of the plate differing by one unit of temperature.
- troilus and cressida — a satiric comedy (1598–1602?) by Shakespeare.
- tropical disturbance — a very weak, or incipient, tropical cyclone.
- united arab republic — a name given the union of Egypt and Syria from 1958 to 1961; after that, the official name of Egypt alone until 1971. Abbreviation: U.A.R.
- vertical divestiture — the disposal of some or all the subsidiaries that make up a company's vertical combination through voluntary sale or legal compulsion.
- vocational education — educational training that provides practical experience in a particular occupational field, as agriculture, home economics, or industry.
- wardrobe malfunction — an embarrassing situation caused by the clothes a person is wearing
- with all due respect — despite my regard for you
- working-capital fund — a fund established to finance operating activities in an industrial enterprise.