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18-letter words containing h, i, r, o, s

  • sonic depth finder — a sonar instrument that uses echolocation to measure depths under water.
  • southern rhodesian — a former name (until 1964) of Zimbabwe (def 1).
  • 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
  • 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.
  • 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.
  • 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.
  • 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
  • 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
  • synthetic geometry — elementary geometry, as distinct from analytic geometry.
  • 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 first sea lord — the senior of the two serving naval officers who sits on the admiralty board of the Ministry of Defence
  • the hotel industry — the branch of the services industry which provides hotels
  • the movie industry — the industry that makes entertainment films or movies
  • the nether regions — the genitals
  • the northern irish — the people who live in or come from Northern Ireland
  • the sun also rises — a novel (1926) by Ernest Hemingway.
  • the uncircumcision — the gentiles
  • there's no telling — You use there's no telling to introduce a statement when you want to say that it is impossible to know what will happen in a situation.
  • thermoluminescence — phosphorescence produced by the heating of a substance.
  • thioarsenious acid — any of a group of hypothetical acids, H3AsS3, HAsS2, and H4As2S5, known only in the forms of their salts
  • thiosulphuric acid — an unstable acid known only in solutions and in the form of its salts. Formula: H2S2O3
  • thirty-second note — a note having 1/32 of the time value of a whole note; demi-semiquaver.
  • thirty-second rest — a rest equal in value to a thirty-second note.
  • thorfinn karlsefni — 980–after 1007, Icelandic navigator, explorer, and leader of early colonizing expedition to Vinland, in North America.
  • thrift-institution — economical management; economy; frugality.
  • throw oneself into — to propel or cast in any way, especially to project or propel from the hand by a sudden forward motion or straightening of the arm and wrist: to throw a ball.
  • to be said for sth — If you say there is a lot to be said for something, you mean you think it has a lot of good qualities or aspects.
  • to raise the alarm — If you raise the alarm or sound the alarm, you warn people of danger.
  • transit theodolite — a theodolite having a telescope that can be transited.
  • transmission shaft — a shaft that rotates transmitting motion from the engine to the differential gear
  • triphosphoric acid — the hypothetical acid H 5 P 3 O 10 , known chiefly by its salts.
  • under the aegis of — guided or protected by
  • urban homesteading — homesteading (def 2).
  • vermilion rockfish — a scarlet-red rockfish, Sebastes miniatus, inhabiting waters along the Pacific coast of North America, important as a food fish.
  • warehouse capacity — the amount of storage space in a warehouse
  • westinghouse brake — a railroad air brake operated by compressed air.
  • wheelchair housing — housing designed or adapted for a chairbound person
  • white iron pyrites — marcasite
  • wilson's phalarope — a phalarope, Phalaropus tricolor, that breeds in the prairie regions of North America and winters in Argentina and Chile.
  • wireless telephone — Now Rare. radiotelephony.
  • wireless telephony — Now Rare. radiotelephony.
  • with flying colors — with flying colors, with an overwhelming victory, triumph, or success: He passed the test with flying colors.
  • withdrawal symptom — effects of stopping a drug
  • work out the kinks — If someone works out the kinks in a situation, they resolve the problems associated with it.
  • working hypothesis — See under hypothesis (def 1).
  • world championship — an international competition in a particular sport or activity for people all around the world
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