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17-letter words containing r, a, s, c

  • sodium dichromate — a red or orange crystalline, water-soluble solid, Na 2 Cr 2 O 7 ⋅2H 2 O, used as an oxidizing agent in the manufacture of dyes and inks, as a corrosion inhibitor, a mordant, a laboratory reagent, in the tanning of leather, and in electroplating.
  • soil conservation — any of various methods to achieve the maximum utilization of the land and preserve its resources through such controls as crop rotation, prevention of soil erosion, etc.
  • solicitor general — a law officer who maintains the rights of the state in suits affecting the public interest, next in rank to the attorney general.
  • sound spectrogram — a graphic representation, produced by a sound spectrograph, of the frequency, intensity, duration, and variation with time of the resonance of a sound or series of sounds.
  • south west africa — a former name of Namibia.
  • south-west africa — a former name of Namibia.
  • spanish civil war — the civil war in Spain 1936–39.
  • sparc xterminal 1 — (computer)   Sun's lowest cost networked Unix desktop, it is board-upgradeable to a SPARC 4. It comes with a choice of frame buffers: 8-bit colour, Turbo GX, or Turbo GX plus. This product was expected to replace the SPARCclassic X. UK availability was planned for March 1995.
  • spastic paralysis — a condition in which the muscles affected are marked by tonic spasm and increased tendon reflexes.
  • spatial frequency — the measure of fine detail in an optical image in terms of cycles per millimetre
  • special messenger — a postal worker who delivers mail by special delivery
  • special privilege — exclusive advantage
  • spectroheliograph — an apparatus for making photographs of the sun with a monochromatic light to show the details of the sun's surface and surroundings as they would appear if the sun emitted only that light.
  • spectroradiometer — an instrument for determining the radiant-energy distribution in a spectrum, combining the functions of a spectroscope with those of a radiometer.
  • spectroscopically — an optical device for producing and observing a spectrum of light or radiation from any source, consisting essentially of a slit through which the radiation passes, a collimating lens, and an Amici prism.
  • spectrum analyser — an instrument that splits an input waveform into its frequency components, which are then displayed
  • spectrum analysis — the determination of the constitution or condition of bodies and substances by means of the spectra they produce.
  • spherical polygon — a closed figure formed by arcs of great circles on a spherical surface.
  • spongy parenchyma — the lower layer of the ground tissue of a leaf, characteristically containing irregularly shaped cells with relatively few chloroplasts and large intercellular spaces.
  • sports facilities — places and things for doing sports
  • spring cankerworm — the striped, green caterpillar of any of several geometrid moths: a foliage pest of various fruit and shade trees, as Paleacrita vernata (spring cankerworm) and Alsophila pometaria (fall cankerworm)
  • spruce gall aphid — any of various homopterous insects of the family Adelgidae, as Adelges abietis (spruce gall aphid) and Pineus pinifoliae (pine leaf aphid) that feed and form galls on conifers.
  • square centimeter — a unit of area measurement equal to a square measuring one centimeter on each side. 2 , sq. cm. Abbreviation: cm.
  • square the circle — a rectangle having all four sides of equal length.
  • squaw huckleberry — deerberry.
  • squeegee merchant — a person who attempts to make money by squeegeeing the windscreens of cars that are stopped at traffic lights and then asking for payment
  • st. crispin's day — October 25: anniversary of the Battle of Agincourt (1415).
  • stag's-horn coral — staghorn coral.
  • stand on ceremony — to insist on or act with excessive formality
  • standard function — a subprogram provided by a translator that carries out a task, for example the computation of a mathematical function, such as sine, square root, etc
  • stannous chloride — a white, crystalline, water-soluble solid, SnCl 2 ⋅2H 2 O, used chiefly as a reducing and tinning agent, and as a mordant in dyeing with cochineal.
  • stare in the face — to gaze fixedly and intently, especially with the eyes wide open.
  • stochastic matrix — a square matrix with positive entries totaling 1 in each row.
  • stock certificate — a certificate evidencing ownership of one or more shares of stock in a corporation.
  • storm in a teacup — a violent fuss or disturbance over a trivial matter
  • strange attractor — Physics. a stable, nonperiodic state or behavior exhibited by some dynamic systems, especially turbulent ones, that can be represented as a nonrepeating pattern in the system's phase space.
  • stray capacitance — undesired capacitance in equipment, occurring between the wiring, between the wiring and the chassis, or between components and the chassis
  • structural survey — an examination of a property carried out by surveyor which should reveal any problems with the building
  • subclavian artery — either of a pair of arteries, one on each side of the body, that carry the main supply of blood to the arms.
  • subclavian groove — either of two grooves in the first rib, one for the main artery (subclavian artery) and the other for the main vein (subclavian vein) of the arm
  • subscription rate — the price charged for a subscription
  • subtractive color — cyan, yellow, or magenta, as used in the subtractive process of color photography.
  • sufficient reason — the principle that nothing happens by pure chance, but that an explanation must always be available
  • sunday observance — the fact of keeping Sunday as a special day when people go to church
  • superaerodynamics — the branch of aerodynamics that deals with gases at very low densities.
  • supercolumniation — the placing of one order of columns above another.
  • support mechanism — any formal system or method of providing support or assistance
  • supreme commander — the military officer commanding all allied forces in a theater of war.
  • supreme sacrifice — the sacrifice of one's own life: Many made the supreme sacrifice during the war.
  • surface condenser — a device condensing steam or vapor by passing it over a cool surface.
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