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18-letter words containing r, e, t, h

  • 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
  • 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.
  • spotted flycatcher — a European woodland songbird, Muscicapa striata, with a greyish-brown streaked plumage: family Muscicapidae (Old World flycatchers)
  • spur-of-the-moment — occurring or done without advance preparation or deliberation; extemporaneous; unplanned: a spur-of-the-moment decision.
  • standard schnauzer — schnauzer.
  • stem-cell research — research that is carried out on stem cells for use in medicine
  • stockholm syndrome — an emotional attachment to a captor formed by a hostage as a result of continuous stress, dependence, and a need to cooperate for survival.
  • 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.
  • stomach sweetbread — sweetbread (def 1).
  • store launch event — A store launch event is a special event, which publicizes the opening of a new store and at which discounts and free samples may be offered.
  • 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
  • stretch one's legs — either of the two lower limbs of a biped, as a human being, or any of the paired limbs of an animal, arthropod, etc., that support and move the body.
  • study hall teacher — a teacher who supervises or helps students during a period of time or lesson used for studying
  • substitute teacher — educator: replaces sb temporarily
  • super middleweight — a boxer weighing up to 168 pounds (75.6 kg), between middleweight and light heavyweight.
  • 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.
  • supportive therapy — any treatment, such as the intravenous administration of certain fluids, designed to reinforce or sustain the physiological well-being of a patient
  • 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.
  • symphony orchestra — a large orchestra composed of wind, string, and percussion instruments and organized to perform symphonic compositions.
  • synthetic geometry — elementary geometry, as distinct from analytic geometry.
  • take a deep breath — If you say that you took a deep breath before doing something dangerous or frightening, you mean that you tried to make yourself feel strong and confident.
  • take sth in stride — If you take a problem or difficulty in stride, you deal with it calmly and easily.
  • take sth literally — If you take something literally, you think that a word or expression is being used with its most simple or basic meaning.
  • take the wraps off — to reveal
  • teacher evaluation — the process of vetting teachers to maintain teaching standards
  • technical reserves — Technical reserves are amounts of money set aside to pay for underwriting liabilities.
  • technical sergeant — a noncommissioned officer ranking below a master sergeant and above a staff sergeant.
  • telephone receiver — a device, as in a telephone, that converts changes in an electric current into sound.
  • temporary hardness — hardness of water due to the presence of magnesium and calcium hydrogencarbonates, which can be precipitated as carbonates by boiling
  • tetrachloromethane — carbon tetrachloride.
  • the american dream — the notion that the American social, economic, and political system makes success possible for every individual
  • the baptist church — any of various Protestant churches that believe in the baptism of believers
  • the better part of — a large part of
  • the bird has flown — the person in question has fled or escaped
  • the cat's whiskers — a person or thing that is excellent or superior
  • the class struggle — the continual conflict between the capitalist and working classes for economic and political power
  • 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 electric chair — an electrified chair for executing criminals
  • 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 fourth of july — a holiday in the United States, traditionally celebrated with fireworks: the day of the adoption of the Declaration of Independence in 1776
  • the french riviera — the Mediterranean coastal region of France from Cannes eastward to Italy
  • the full treatment — If you say that someone is given the full treatment, you mean either that they are treated extremely well or that they are treated extremely severely.
  • the general public — the people in a society; people in general
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