20-letter words containing d, i, s, a, l
- sierra madre del sur — a plateau mountain range in Guerrero and Oaxaca states, S Mexico. Highest peak 12,149 feet (3703 meters).
- silicon tetrahydride — silane (def 1).
- small craft advisory — a U.S. National Weather Service advisory of sustained winds, over coastal and inland waters, with speeds of 20–33 knots (23–38 mph, 10–17 m/sec). Regional NWS offices have discretion over the choice of the lower limit.
- social security card — a card that contains details of a person's social security number
- societal development — the formation and transformation of social life, customs, institutions, etc.
- 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)
- spherical coordinate — Usually, spherical coordinates. any of three coordinates used to locate a point in space by the length of its radius vector and the angles this vector makes with two perpendicular polar planes.
- spiral of archimedes — a curve that is the locus of a point that moves outward with uniform speed along a vector, beginning at the origin, while the vector rotates about the origin with uniform angular velocity. Equation (in polar coordinates): r = aθ.
- spotted crane's-bill — the American wild geranium, Geranium maculatum.
- spread like wildfire — If something, especially news or a rumour, spreads like wildfire, it spreads extremely quickly.
- stained glass window — a window made of coloured glass, often showing religious pictures and usually seen in churches
- stallman, richard m. — Richard Stallman
- standstill agreement — law: between company and bidder
- 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.
- television broadcast — sth shown on tv
- 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
- the last word in sth — If you say that something is the last word in luxury, comfort, or some other quality, you are emphasizing that it has a great deal of this quality.
- the whole nine yards — everything that is required; the whole thing
- three-dimensionality — having, or seeming to have, the dimension of depth as well as width and height.
- to hit the headlines — Someone or something that hits the headlines or grabs the headlines gets a lot of publicity from the media.
- townsend's solitaire — a brownish, slender-billed songbird, Myadestes townsendi, of western North America.
- transcendental logic — (in Kantian epistemology) the study of the mind with reference to its perceptions of external objects and to the objective truth of such perceptions.
- troilus and cressida — a satiric comedy (1598–1602?) by Shakespeare.
- tropical disturbance — a very weak, or incipient, tropical cyclone.
- unsaddling enclosure — the area at a racecourse where horses are unsaddled after a race and often where awards are given to owners, trainers, and jockeys
- vertical divestiture — the disposal of some or all the subsidiaries that make up a company's vertical combination through voluntary sale or legal compulsion.
- visual merchandising — Visual merchandising is the use of attractive displays and floor plans to increase customer numbers and sales volumes.
- visually handicapped — unable to carry out normal activities because of defects of vision, including blindness
- william westmoreland — William Childs [chahyldz] /tʃaɪldz/ (Show IPA), 1914–2005, U.S. army officer: commander of U.S. forces in Vietnam and Thailand 1964–68.
- wilson cloud chamber — cloud chamber.
- with all due respect — despite my regard for you
- woolsorters' disease — pulmonary anthrax in humans, caused by inhaling the spores of Bacillus anthracis, which may contaminate wool fleece.