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18-letter words containing t, o, r, i, e

  • 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.
  • 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.
  • 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.
  • 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
  • squinting modifier — a word or phrase that can modify either the words that precede it or those that follow, as frequently in the sentence Studying frequently is tedious.
  • 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.
  • stationary bicycle — an exercise bike
  • steering committee — a committee, especially of a deliberative or legislative body, charged with preparing the agenda of a session.
  • 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.
  • 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.
  • strait of magellan — a strait between the mainland of S South America and Tierra del Fuego, linking the S Pacific with the S Atlantic. Length: 600 km (370 miles). Width: up to 32 km (20 miles)
  • strathclyde region — a former local government region in W Scotland: formed in 1975 from Glasgow, Renfrewshire, Lanarkshire, Buteshire, Dunbartonshire, and parts of Argyllshire, Ayrshire, and Stirlingshire; replaced in 1996 by the council areas of Glasgow, Renfrewshire, East Renfrewshire, Inverclyde, North Lanarkshire, South Lanarkshire, Argyll and Bute, East Dunbartonshire, West Dunbartonshire, North Ayrshire, South Ayrshire, and East Ayrshire
  • strong derived set — the set of all strong accumulation points of a given set.
  • strong interaction — the interaction between gluons and between gluons and quarks that is responsible for the strong force.
  • strontium monoxide — a white insoluble solid substance used in making strontium salts and purifying sugar. Formula: SrO
  • student councillor — a student who is a member of a council or body representing the interests of students at a school, university or college
  • subatomic particle — physics:
  • subordinate clause — a clause that modifies the principal clause or some part of it or that serves a noun function in the principal clause, as when she arrived in the sentence I was there when she arrived or that she has arrived in the sentence I doubt that she has arrived.
  • sun-dried tomatoes — tomatoes that have been dried or preserved by exposure to the sun
  • super giant slalom — a slalom race in which the course is longer and has more widely spaced gates than in a giant slalom.
  • superstring theory — any supersymmetric string theory in which each type of elementary particle is treated as a vibration of a single fundamental string (superstring) at a particular frequency.
  • 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.
  • symmetric function — a polynomial in several indeterminates that stays the same under any permutation of the indeterminates.
  • synthetic geometry — elementary geometry, as distinct from analytic geometry.
  • 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).
  • take out insurance — take out insurance against something
  • teacher evaluation — the process of vetting teachers to maintain teaching standards
  • tectorial membrane — membrane in the inner ear that covers the organ of Corti
  • telephone receiver — a device, as in a telephone, that converts changes in an electric current into sound.
  • telford and wrekin — a unitary authority in W Central England, in Shropshire. Pop: 160 300 (2003 est). Area: 289 sq km (112 sq miles)
  • temporal summation — the act or process of summing.
  • tender loving care — considerate and kindly care, as of someone who is ill, upset, etc
  • territorial waters — law: nation's boundaries
  • territorialization — to extend by adding new territory.
  • territory of papua — a former territory of Australia, consisting of SE New Guinea and adjacent islands: now part of Papua New Guinea
  • tertiary education — education, following secondary education at a school, at a college or university
  • the bird has flown — the person in question has fled or escaped
  • the coast is clear — If you say that the coast is clear, you mean that there is nobody around to see you or catch you.
  • the dark continent — a term for Africa when it was relatively unexplored
  • the electronic age — the electronic age began when electronic equipment, including computers came into use
  • the first sea lord — the senior of the two serving naval officers who sits on the admiralty board of the Ministry of Defence
  • the grand national — an annual steeplechase run at Aintree, Liverpool, since 1839
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