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18-letter words containing s, p, i, c

  • sleeping policeman — a bump built across roads, esp in housing estates, to deter motorists from speeding
  • sling psychrometer — a psychrometer so designed that the wet-bulb thermometer can be ventilated, to expedite evaporation, by whirling in the air.
  • sociopsychological — of, relating to, or characterized by interrelated social and psychological factors.
  • solubility product — the maximum number of undissociated ions, of an electrolyte in a saturated solution, capable at a given temperature of remaining in equilibrium with the undissolved phase of the solution.
  • sonic depth finder — a sonar instrument that uses echolocation to measure depths under water.
  • spackling compound — spackle
  • spaghetti junction — an interchange, usually between motorways, in which there are a large number of underpasses and overpasses and intersecting roads used by a large volume of high-speed traffic
  • spanish succession — War of thea war (1701-14) between European powers disputing the succession to the Spanish throne
  • special assessment — a tax levied by a local government on private property to pay the cost of local public improvements, as sidewalk construction or sewage disposal, that are of general benefit to the property taxed.
  • special collection — a collection of materials segregated from a general library collection according to form, subject, age, condition, rarity, source, or value.
  • 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
  • specific viscosity — a measure of the resistance to flow of a fluid, expressed as the ratio of the absolute viscosity of the fluid to that of a reference fluid (usually water in the case of liquids)
  • specimen signature — a signature to be compared to an original signature in order to verify someone's identity
  • spectrocolorimetry — the quantitative measure of colors by spectrophotometry.
  • spectrofluorimeter — an instrument in which the spectrum of secondarily emitted fluorescent light is used to identify chemical compounds.
  • 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.
  • speech recognition — Computers. the computerized analysis of spoken words in order to identify the speaker, as in security systems, or to respond to voiced commands: the analysis is performed by finding patterns in the spectrum of the incoming sound and comparing them with stored patterns of elements of sound, as phones, or of complete words.
  • speech synthesizer — device that imitates human voice
  • 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.
  • split-level cooker — a cooker that is designed with a separate oven and hob so that they can be fitted wherever is most convenient in the kitchen
  • status epilepticus — a condition in which repeated epileptic seizures occur without the patient gaining consciousness between them. If untreated for a prolonged period it can lead to long-term disability or death
  • statutory sick pay — the pay an employee is legally entitled to when sick
  • stepping-off place — jumping-off place (def 2).
  • stratigraphic trap — A stratigraphic trap is a rock formation that contains hydrocarbons and is sealed by other rock formations.
  • subatomic particle — physics:
  • subsidiary company — a company whose controlling interest is owned by another company.
  • summary proceeding — a mode of trial authorized by statute to be held before a judge without the usual full hearing.
  • superciliary ridge — browridge.
  • superior vena cava — See under vena cava.
  • supporting actress — an actress playing a supporting role
  • surgical appliance — a specialized device used by somebody to relieve a particular medical condition
  • sweptwing aircraft — an aircraft which has wings that are swept (usually) backwards
  • sympathetic strike — sympathy strike.
  • sympathetic string — a thin wire string, as in various obsolete musical instruments, designed to vibrate sympathetically with the bowed or plucked strings to reinforce the sound.
  • systematic phoneme — a phonological unit in generative phonology representing an underlying form that takes into account the relationship between phonological patterns and morphological variation, as the unit underlying the second vowel in both derive and derivative.
  • television company — a company that broadcasts programmes by television
  • the baptist church — any of various Protestant churches that believe in the baptism of believers
  • the encyclopedists — the writers of the French Encyclopedia (1751-72) edited by Diderot and d'Alembert, which contained the advanced ideas of the period
  • the practicalities — the real facts or details of a situation, as opposed to its theoretical aspects
  • thiosulphuric acid — an unstable acid known only in solutions and in the form of its salts. Formula: H2S2O3
  • threatened species — a species likely, in the near future, to become an endangered species within all or much of its range.
  • to cast aspersions — If you cast aspersions on someone or something, you suggest that they are not very good in some way.
  • to lick into shape — If you lick, knock, or whip someone or something into shape, you use whatever methods are necessary to change or improve them so that they are in the condition that you want them to be in.
  • to pick and choose — If you pick and choose, you carefully choose only things that you really want and reject the others.
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