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21-letter words containing s, n, i

  • student participation — the extent to which students participate or involve themselves in a class, course, etc
  • subjective complement — subject complement.
  • subliminal perception — perception of or reaction to a stimulus that occurs without awareness or consciousness
  • submerged arc welding — a type of heavy electric-arc welding using mechanically fed bare wire with the arc submerged in powdered flux to keep out oxygen
  • subsistence allowance — money given in advance to a new soldier, employee, etc., to buy food, clothing, and pay for other necessities while awaiting a first pay.
  • substitution instance — an expression so derived from another
  • 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.
  • 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
  • supply-side economics — a school of economic thought that emphasizes the importance to a strong economy of policies that remove impediments to supply
  • 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.
  • sweet spirit of nitre — ethyl nitrite spirit.
  • swim against the tide — to resist prevailing opinion
  • sympathetic vibration — a vibration induced by resonance.
  • symphonie fantastique — a programmatic symphony (1830–31) in five movements by Hector Berlioz.
  • synchronized shifting — gear shifting in which the gears to be meshed are made to rotate at the same speed.
  • synchronized swimming — a sport growing out of water ballet in which swimmers, in solo, duet, and team efforts, complete various required figures by performing motions in relatively stationary positions, along with a freestyle competition, with the contestants synchronizing movements to music and being judged for body position, control, and the degree of difficulty of the moves.
  • synchrotron radiation — electromagnetic radiation emitted by charged particles as they pass through magnetic fields.
  • systeme international — Système International d'Unités
  • take one's (own) life — to commit suicide
  • take one's finger out — stop delaying or procrastinating
  • 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.
  • television evangelist — a Christian minister who devotes time to preaching on television
  • 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.
  • tetrabromofluorescein — eosin (def 1).
  • the acting profession — actors considered as a group
  • the antipodes islands — a group of small uninhabited islands in the South Pacific, southeast of and belonging to New Zealand. Area: 62 sq km (24 sq miles)
  • the central provinces — the Canadian provinces of Ontario and Quebec
  • 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 executive mansion — the White House
  • 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
  • the probation service — a criminal justice service that is mainly responsible for dealing with offenders by placing them under the supervision of a probation officer
  • the scout association — a worldwide movement for boys or (in some countries) girls, founded as the Boy Scouts in England in 1908 by Lord Baden-Powell with the aim of developing character and responsibility
  • the shipping forecast — a radio broadcast made by the BBC of weather reports and forecasts for the seas around the British Isles
  • the shit hits the fan — the real trouble begins
  • the stars and stripes — the national flag of the United States of America, consisting of 50 white stars representing the present states on a blue field and seven red and six white horizontal stripes representing the original states
  • the stationery office — (in the UK) the company that supplies the civil service with all its office supplies, machinery, printing and binding, etc
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