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21-letter words containing r, e, s, t

  • student participation — the extent to which students participate or involve themselves in a class, course, etc
  • subliminal perception — perception of or reaction to a stimulus that occurs without awareness or consciousness
  • substitution reaction — the replacement of an atom or group of atoms in a compound by another atom or group.
  • suction and curettage — a technique involving extraction of the fetus through a suction tube, used to perform abortions during the early stages of pregnancy.
  • sun protection factor — SPF.
  • sunday school teacher — someone who teaches at a Sunday school
  • supergranulation cell — one of a number of large convection cells in the photosphere and chromosphere of the sun, each having a diameter of 10,000–20,000 miles (16,000–32,000 km) and lasting longer than a day.
  • supplementary benefit — (formerly) an extra amount of money that is paid to someone by the government, in addition to their normal income. Replaced by income support in 1988
  • surface acoustic wave — an acoustic wave generated on the surface of a piezoelectric substrate: used as a filter in electronic circuits
  • surface friction drag — the part of the drag on a body moving through a fluid that is dependent on the nature of the surface of the body
  • surface of projection — the surface upon which an image or a set of points is projected.
  • surface of revolution — a surface formed by revolving a plane curve about a given line.
  • surface-to-underwater — (of a missile, message, etc.) traveling from the surface of the earth to a target underwater.
  • sweet spirit of nitre — ethyl nitrite spirit.
  • sympathetic vibration — a vibration induced by resonance.
  • synchronized shifting — gear shifting in which the gears to be meshed are made to rotate at the same speed.
  • synchronous converter — a synchronous machine for converting alternating current to direct current, or vice versa, in which the armature winding is connected to collector rings and to a commutator.
  • systeme international — Système International d'Unités
  • take one's finger out — stop delaying or procrastinating
  • take sb at their word — If you take someone at their word, you believe what they say, when they did not really mean it or when they meant something slightly different.
  • take sb/sth seriously — If you take someone or something seriously, you believe that they are important and deserve attention.
  • take someone prisoner — to capture and hold someone as a prisoner, esp as a prisoner of war
  • take under advisement — to consider carefully
  • tape operating system — (operating system)   (TOS) An IBM operating system for System 360, used in the early days around 1965 to support the IBM 360 model 30 et al. TOS was a predecessor to IBM's Disk Operating System. TOS died out really early as disks such as the 2311 and 2314 became common with the IBM 360 whereas thet had been a real luxury on the IBM 7090.
  • tartarian honeysuckle — an Asian honeysuckle, Lonicera tatarica, having fragrant, white to pink flowers.
  • temperature inversion — inversion (def 12).
  • tenure track position — a position or office that carries with it the opportunity to eventually obtain tenure or the right to permanent employment
  • terrestrial radiation — long-wave electromagnetic radiation in the form of heat emitted from the earth's surface and atmosphere.
  • terrestrial telescope — a refracting telescope having inverting lenses or an eyepiece that presents an erect image.
  • tetrabromofluorescein — eosin (def 1).
  • the (norman) conquest — the conquering of England by the Normans under William the Conqueror in 1066
  • the acting profession — actors considered as a group
  • the barber of seville — Italian Il barbiere di Siviglia. a comic opera (1816) by Gioacchino Rossini based on a comedy (1775) by Beaumarchais.
  • the central provinces — the Canadian provinces of Ontario and Quebec
  • the comrades marathon — an annual long-distance race run every year on the 16th of June from Durban to Pietermaritzburg, a distance of approximately 90 kilometres (56 miles)
  • the corncracker state — a nickname for the state of Kentucky
  • the early renaissance — the period from about 1400 to 1500 in European, esp Italian, painting, sculpture, and architecture, when naturalistic styles and humanist theories were evolved from the study of classical sources, notably by Donatello, Masaccio, and Alberti
  • the end of one's rope — the end of one's endurance, resources, etc.
  • the fall of the cards — the chance distribution of cards in a given deal
  • the fast track to sth — the quickest or most direct route or system
  • the flickertail state — a name for the state of North Dakota
  • the household cavalry — a group of British soldiers on horseback who have the job of protecting the king or queen and their family
  • the jury is still out — it has not yet been decided or agreed on
  • the lower vertebrates — relatively simple and primitive vertebrates
  • the maastricht treaty — a treaty on European economic and monetary union agreed by government leaders of the 12 EC states at a meeting in Maastricht in December 1991
  • the man in the street — If you talk about the man in the street or the man or woman in the street, you mean ordinary people in general.
  • the microsoft network — (networking)   (MSN) Microsoft's ISP and online content service, launched in October 1996. Not to be confused with Microsoft Networking. MSN was originally based on custom software and protocols, however Microsoft saw the error of their ways and adopted Internet standards. MSN now provides standard WWW and email facilities, albeit with Microsoft's Internet Explorer web-browser and the Outlook Express email software. The service also provides "Community Services" including newsgroups, forums, and chat.
  • the oldest profession — prostitution
  • the origin of species — (On the Origin of Species by Means of Natural Selection, or the Preservation of Favoured Races in the Struggle for Life) a treatise (1859) by Charles Darwin setting forth his theory of evolution.
  • the press association — the national news agency for the United Kingdom and Ireland
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