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19-letter words containing d, r

  • scale down (or up) — to reduce (or increase), often according to a fixed ratio or proportion
  • screen actors guild — a labor union for motion-picture performers, founded in 1933. Abbreviation: SAG.
  • sea floor spreading — a process in which new ocean floor is created as molten material from the earth's mantle rises in margins between plates or ridges and spreads out.
  • sea-floor spreading — a process in which new ocean floor is created as molten material from the earth's mantle rises in margins between plates or ridges and spreads out.
  • secondary dentition — the permanent dentition
  • secondary education — education at high-school level
  • secondary infection — an infection resulting from another infection
  • secondary intention — See under intention (def 5b).
  • secondary picketing — the picketing by strikers of a place of work that supplies goods to or distributes goods from their employer
  • secondary processes — the conscious mental activity and logical thinking controlled by the ego and influenced by environmental demands.
  • secondary qualities — one of the qualities attributed by the mind to an object perceived, such as color, temperature, or taste.
  • secondary structure — the arrangement of a polypeptide into a regular alpha helix, beta structure, or random coil configuration by the formation of intramolecular hydrogen bonds along the length of the chain.
  • secondary-intention — an act or instance of determining mentally upon some action or result.
  • self-administration — the management of any office, business, or organization; direction.
  • self-aggrandizement — increase of one's own power, wealth, etc., usually aggressively.
  • self-discrimination — an act or instance of discriminating, or of making a distinction.
  • sell down the river — a natural stream of water of fairly large size flowing in a definite course or channel or series of diverging and converging channels.
  • semiconductor laser — a laser in which a semiconductor is the light-emitting source, used in many medical procedures.
  • semidetached binary — a pair of stars that are so close together that mass transfer occurs from one to the other
  • semipalmated plover — a New World plover, Charadrius semipalmatus, having a black ring around the chest and semipalmate feet, inhabiting beaches and salt marshes.
  • senatorial district — one of a fixed number of districts into which a state of the U.S. is divided, each electing one member to the state senate.
  • sensory deprivation — the experimental or natural reduction of environmental stimuli, as by physical isolation or loss of eyesight, often leading to cognitive, perceptual, or behavioral changes, as disorientation, delusions, or panic.
  • sexual reproduction — reproduction involving the union of gametes.
  • sharp-tailed grouse — a grouse, Pedioecetes phasianellus, of prairies and open forests of western North America, similar in size to the prairie chicken but with a more pointed tail.
  • sheet flood erosion — Geology. erosion by sheets of running water, rather than by streams.
  • ship-to-shore radio — a radio that carries communications between land and sea
  • shipping department — a department in a company responsible for arranging, receiving, recording, and sending shipments of goods
  • sidereal hour angle — the angle, measured westward through 360°, between the hour circle passing through the vernal equinox and the hour circle of a celestial body.
  • simple carbohydrate — a carbohydrate, as glucose, that consists of a single monosaccharide unit.
  • simple closed curve — a curve that is closed and that has no loops or points missing; a curve for which there exists a homeomorphism mapping it to a circle.
  • sir wilfrid laurier — Sir Wilfrid [wil-frid;; French weel-freed] /ˈwɪl frɪd;; French wilˈfrid/ (Show IPA), 1841–1919, Canadian statesman: prime minister 1896–1911.
  • slate-colored junco — the eastern subspecies of the dark-eyed junco, Junco hyemalis, having grayer plumage than the several western subspecies.
  • small advertisement — a short, simply designed advertisement in a newspaper or magazine, usually set entirely in a small size of type
  • smokestack industry — A smokestack industry is a traditional industry such as heavy engineering or manufacturing, rather than a modern industry such as electronics.
  • sodium hydrosulfite — a white, crystalline, water-soluble powder, Na 2 S 2 O 4 , used as a reducing agent, especially in dyeing, and as a bleach.
  • sodium hypochlorite — a pale-green, crystalline compound, NaOCl, unstable in air, soluble in cold water, decomposes in hot water: used as a bleaching agent for paper and textiles, in water purification, in household use, and as a fungicide.
  • soft-shelled turtle — any of numerous aquatic turtles of the family Trionychidae, inhabiting North America, Asia, and Africa, having the shell covered with flexible, leathery skin instead of horny plates.
  • solid of revolution — a three-dimensional figure formed by revolving a plane area about a given axis.
  • south african dutch — the Boers.
  • spider-hunting wasp — any solitary wasp of the superfamily Pompiloidea, having a slender elongated body: the fast-running female hunts spiders as a food store for her larvae
  • spotted wintergreen — an evergreen plant, Chimaphila maculata, of central North America, having leaves with mottled-white veins and white, fragrant flowers.
  • spread oneself thin — to draw, stretch, or open out, especially over a flat surface, as something rolled or folded (often followed by out).
  • staff-student ratio — the ratio of teachers to pupils or students in a school, college, or university
  • stakeholder pension — In Britain, a stakeholder pension is a flexible pension scheme with low charges. Both employees and the state contribute to the scheme, which is optional, and is in addition to the basic state pension.
  • standard atmosphere — an arbitrarily determined vertical distribution of atmospheric pressure, temperature, and density, assumed to have physical constants and conforming to parametric equations, used for calculations in ballistics, the design of pressure altimeters, etc.
  • standing broad jump — a jump for distance from a standing position.
  • standing martingale — martingale (def 1).
  • stanford university — (education)   A University in the city of Palo Alto, California, noted for work in computing, especially artificial intelligence. See SAIL.
  • stanford-binet test — a revised version of the Binet-Simon scale, prepared at Stanford University for use in the U.S.
  • starve the bardies! — an exclamation of surprise or protest
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