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18-letter words containing i, s, r, a

  • silver certificate — a former paper currency first issued in 1878 by the U.S. federal government for circulation, equal to and redeemable for silver to a stated value.
  • simone de beauvoir — Simone [see-mawn] /siˈmɔn/ (Show IPA), (Lucie Ernestine Marie Bertrand) 1908–86, French playwright, novelist, and essayist.
  • simple enumeration — a procedure for arriving at empirical generalizations by haphazard accumulation of positive instances.
  • sinclair radionics — Sinclair Research
  • sindbad the sailor — (in The Arabian Nights' Entertainments), a wealthy citizen of Baghdad who relates the adventures of his seven wonderful voyages.
  • ski-mountaineering — a combination of the sports of skiing and mountaineering, for example by climbing up a mountain then skiing down it
  • skin friction drag — aerodynamic resistance or drag due to the contact of moving air with the surface of an airplane, a glider, etc.
  • skinny-rib sweater — a tight-fitting ribbed woollen jumper or pullover
  • slow-motion replay — a showing again in slow motion of a sequence of action, esp of part of a sporting contest immediately after it happens
  • small claims court — a special court established to handle small claims or debts, usually without the services of lawyers.
  • small-claims court — a special court established to handle small claims or debts, usually without the services of lawyers.
  • snake in the grass — a treacherous person, especially one who feigns friendship.
  • social bookmarking — the practice of saving bookmarked Web pages to a public website as a way to share the links with other Internet users: Social bookmarking is a tool that allows you to add tags and comments to your bookmarks.
  • social engineering — the application of the findings of social science to the solution of actual social problems.
  • social environment — the environment developed by humans as contrasted with the natural environment; society as a whole, especially in its relation to the individual.
  • societal marketing — marketing that takes into account society's long-term welfare
  • soda-lime feldspar — plagioclase.
  • sodium bicarbonate — a white, crystalline, water-soluble solid, in powder or granules, NaHCO 3 , usually prepared by the reaction of soda ash with carbon dioxide or obtained from the intermediate product of the Solvay process by purification: used chiefly in the manufacture of sodium salts, baking powder, and beverages, as a laboratory reagent, as a fire extinguisher, and in medicine as an antacid.
  • sodium tetraborate — borax1 .
  • sodium-vapour lamp — a type of electric lamp consisting of a glass tube containing neon and sodium vapour at low pressure through which an electric current is passed to give an orange light. They are used in street lighting
  • solitary sandpiper — a North American sandpiper, Tringa solitaria, of inland wetlands, having a brownish-gray, white-spotted back and whitish underparts.
  • solomon rabinowitz — Solomon, Aleichem, Sholom.
  • solvent extraction — Solvent extraction is the separation of a particular substance from a mixture by dissolving that substance in a solvent that will dissolve it, but which will not dissolve any other substance in the mixture.
  • something to spare — a surplus of something
  • southern rhodesian — a former name (until 1964) of Zimbabwe (def 1).
  • special prosecutor — (formerly) an independent counsel.
  • special relativity — the state or fact of being relative.
  • specialist teacher — a teacher with expertise in working with children with special educational needs, such as dyslexia
  • specimen signature — a signature to be compared to an original signature in order to verify someone's identity
  • spectroheliography — the process of obtaining an image of the sun in light of a particular wavelength, such as calcium or hydrogen, showing the distribution of the element over the surface and in the solar atmosphere, using a spectroheliograph
  • spectropolarimeter — an instrument for determining the extent to which plane-polarized light of various wavelengths is rotated by certain solutions, consisting of a combination of a spectroscope and a polarimeter.
  • spectropolariscope — an instrument combining the functions of a spectroscope with those of a polariscope.
  • sperry corporation — (company)   The company which merged with the Burroughs Corporation to form Unisys Corporation. Divisions included Sperry Univac, Sperry Flight Systems, and others. Some of these were sold off after the merger.
  • spherical geometry — the branch of geometry that deals with figures on spherical surfaces.
  • spherical triangle — a triangle formed by arcs of great circles of a sphere.
  • spike-tooth harrow — a harrow equipped with straight teeth on horizontal bars, usually employed to smooth and level plowed soil or seedbeds for planting or sowing.
  • spirits of ammonia — a 10% solution of ammonia in alcohol
  • spread one's wings — to make full use of one's abilities
  • st. lawrence river — a river in SE Canada, flowing NE from Lake Ontario, forming part of the boundary between New York and Ontario, and emptying into the Gulf of St. Lawrence. 760 miles (1225 km) long.
  • standard amenities — the sanitary facilities recommended for all dwellings by the housing law: a fixed bath or shower, wash-hand basin, and sink, all supplied with hot and cold water, and a flush toilet
  • standard deviation — a measure of dispersion in a frequency distribution, equal to the square root of the mean of the squares of the deviations from the arithmetic mean of the distribution.
  • standard of living — a grade or level of subsistence and comfort in everyday life enjoyed by a community, class, or individual: The well-educated generally have a high standard of living.
  • standoff insulator — a type of insulator that supports an electrical conductor at a distance from other elements or surfaces.
  • static electricity — a stationary electric charge built up on an insulating material.
  • stationary bicycle — an exercise bike
  • statutory sick pay — the pay an employee is legally entitled to when sick
  • steller's sea lion — any of several large eared seals, as Eumetopias jubatus (Steller's sea lion) of the northern Pacific, and Zalophus californicus (California sea lion) of the Pacific coast of North America.
  • stirling's formula — a relation that approximates the value of n factorial (n!), expressed as .
  • stoichiometrically — of or relating to stoichiometry.
  • stokely carmichael — Hoagland Howard [hohg-luh nd] /ˈhoʊg lənd/ (Show IPA), ("Hoagy") 1899–1981, U.S. songwriter and musician.
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