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18-letter words containing a, t, p, r, i

  • self-disparagement — the act of disparaging.
  • self-preoccupation — the state of being preoccupied.
  • self-tapping screw — a screw designed to tap its corresponding female thread as it is driven.
  • separation anxiety — the normal fear and apprehension expressed by infants when removed from their mothers or approached by strangers.
  • september holidays — a period of time in September when people do not have to go to school, college or work
  • septic sore throat — an acute, toxic, streptococcus infection of the throat producing fever, tonsillitis, and other serious effects.
  • service department — a repair shop
  • shepherd satellite — a small moon orbiting near a planetary ring, whose gravitational pull helps confine the ring and the ring's extent.
  • shipping container — a large, strong container, usually of metal, used to store goods in during shipment
  • shunting operation — an operation in which rail coaches are manoeuvred
  • simple enumeration — a procedure for arriving at empirical generalizations by haphazard accumulation of positive instances.
  • 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
  • solitary sandpiper — a North American sandpiper, Tringa solitaria, of inland wetlands, having a brownish-gray, white-spotted back and whitish underparts.
  • something to spare — a surplus of something
  • 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
  • statutory sick pay — the pay an employee is legally entitled to when sick
  • stratigraphic trap — A stratigraphic trap is a rock formation that contains hydrocarbons and is sealed by other rock formations.
  • subatomic particle — physics:
  • super giant slalom — a slalom race in which the course is longer and has more widely spaced gates than in a giant slalom.
  • supporting actress — an actress playing a supporting role
  • supportive therapy — any treatment, such as the intravenous administration of certain fluids, designed to reinforce or sustain the physiological well-being of a patient
  • supraorbital ridge — browridge.
  • sustaining program — a radio or television program without a commercial sponsor.
  • 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.
  • system-programming — a program, as an operating system, compiler, or utility program, that controls some aspect of the operation of a computer (opposed to application program).
  • temporal summation — the act or process of summing.
  • terrestrial planet — inner planet.
  • territory of papua — a former territory of Australia, consisting of SE New Guinea and adjacent islands: now part of Papua New Guinea
  • the baptist church — any of various Protestant churches that believe in the baptism of believers
  • the general public — the people in a society; people in general
  • the operative word — If you describe a word as the operative word, you want to draw attention to it because you think it is important or exactly true in a particular situation.
  • the practicalities — the real facts or details of a situation, as opposed to its theoretical aspects
  • the-cocktail-party — a play in verse (1950) by T. S. Eliot.
  • thiosulphuric acid — an unstable acid known only in solutions and in the form of its salts. Formula: H2S2O3
  • thiruvananthapuram — a state in SW India: formerly the regions of Travancore and Cochin. 15,005 sq. mi. (38,836 sq. km). Capital: Thiruvananthapuram.
  • threatened species — a species likely, in the near future, to become an endangered species within all or much of its range.
  • thrills and spills — If you refer to thrills and spills, you are referring to an experience which is exciting and full of surprises.
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