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17-letter words containing v, s, i

  • reverse lightning — a faint discharge of blue light from the top of a thunderstorm cloud that propagates upward: extends approximately from the bottom to the top of the stratosphere and is not detectable from the ground.
  • reza shah pahlavi — Muhammad Riza (or Reza) [ri-zah] /rɪˈzɑ/ (Show IPA), 1919–80, shah of Iran 1941–79; in exile after 1979 (son of Riza Shah Pahlavi).
  • riza shah pahlavi — Pahlavi (def 2).
  • roving commission — authority or power given in a general area, without precisely defined terms of reference
  • rybinsk reservoir — a vast water reservoir in W central Russia on the River Volga and its tributaries Sheksna and Mologa, formed by Rybinsk Hydroelectric Station dam
  • saint agnes's eve — the night of January 20, superstitiously regarded as a time when a young woman who performs certain rites is likely to dream of her future husband.
  • saint bonaventure — Saint ("the Seraphic Doctor") 1221–74, Italian scholastic theologian.
  • saint croix river — Also called Santa Cruz. a U.S. island in the N Lesser Antilles: the largest of the Virgin Islands. 82 sq. mi. (212 sq. km).
  • saint kitts-nevis — a twin-island state in the Leeward Islands, in the E West Indies, consisting of the islands of St. Kitts and Nevis: formerly a British colony and member of the West Indies Associated States; gained independence 1983. 104 sq. mi. (269 sq. km). Capital: Basseterre.
  • saturation diving — a method of prolonged diving, using an underwater habitat to allow divers to remain in the high-pressure environment of the ocean depths long enough for their body tissues to become saturated with the inert components of the pressurized gas mixture that they breathe: when this condition is reached, the amount of time required for decompression remains the same, whether the dive lasts a day, a week, or a month.
  • second derivative — the derivative of the derivative of a function: Acceleration is the second derivative of distance with respect to time.
  • selective amnesia — the deliberate forgetting of something
  • selective service — compulsory military service.
  • self-belay device — (in climbing) a device used to pay out a safety rope as required
  • self-conservation — the act of conserving; prevention of injury, decay, waste, or loss; preservation: conservation of wildlife; conservation of human rights.
  • self-preservation — preservation of oneself from harm or destruction.
  • semi-quantitative — partially quantitative.
  • sensitivity group — a group of persons participating in sensitivity training.
  • sentimental value — personal, emotional significance
  • servient tenement — land subject to an easement or servitude.
  • seven deadly sins — Christianity: worst vices
  • side-valve engine — a type of internal-combustion engine in which the inlet and exhaust valves are in the cylinder block at the side of the pistons
  • silent revolution — a social or political revolution that takes place with little warning and without great fuss or unrest
  • silver collection — a collection that consists of silver coins that is made at a meeting etc
  • silver star medal — a U.S. military decoration in the form of a bronze star with a small silver star at the center, awarded for gallantry in action
  • sinus of valsalva — any of the pouches of the aorta and the pulmonary artery opposite the flaps of the semilunar valves into which blood returning to the heart flows, closing the valves.
  • situations vacant — Situations Vacant is the title of a column or page in a newspaper where jobs are advertised.
  • sleep deprivation — a condition in which you have not had enough sleep
  • sliding vane pump — A sliding vane pump is a pump in which the vanes (=flat parts) are the main sealing element between the suction and discharge areas.
  • small-leaved lime — Tilia cordata: a tiliaceous deciduous tree of the N temperate genus Tilia, having heart-shaped leaves and small fragrant yellowish flowers: cultivated for timber and as shade trees
  • sodium-vapor lamp — an electric lamp in which sodium vapor is activated by current passing between two electrodes, producing a yellow, glareless light: used on streets and highways.
  • softvelocity inc. — (company)   The distributors of the Clarion family of application development systems.
  • soil conservation — any of various methods to achieve the maximum utilization of the land and preserve its resources through such controls as crop rotation, prevention of soil erosion, etc.
  • spanish civil war — the civil war in Spain 1936–39.
  • special privilege — exclusive advantage
  • spiral bevel gear — a bevel gear having curved teeth tending to converge on the axis of rotation.
  • squash vine borer — the larva of a clearwing moth, Melittia satyriniformis, that bores into the stems of squash and related plants.
  • st. vitus's dance — St. Vitus's dance.
  • state the obvious — point out sth already evident
  • stellar evolution — the sequence of changes that occurs in a star as it ages
  • subclavian artery — either of a pair of arteries, one on each side of the body, that carry the main supply of blood to the arms.
  • subclavian groove — either of two grooves in the first rib, one for the main artery (subclavian artery) and the other for the main vein (subclavian vein) of the arm
  • subjective spirit — spirit, insofar as it falls short of the attainments of objective spirit.
  • subsistence level — low standard of living
  • substantive right — a right, as life, liberty, or property, recognized for its own sake and as part of the natural legal order of society.
  • subtractive color — cyan, yellow, or magenta, as used in the subtractive process of color photography.
  • superconductivity — the phenomenon of almost perfect conductivity shown by certain substances at temperatures approaching absolute zero. The recent discovery of materials that are superconductive at temperatures hundreds of degrees above absolute zero raises the possibility of revolutionary developments in the production and transmission of electrical energy.
  • supermassive star — Astronomy. a star with a mass more than fifty times the mass of the sun.
  • supervision order — an order by a juvenile court requiring a named probation officer or local-authority social worker to advise, assist, and befriend a child or young person who is the subject of care proceedings, over a period of up to three years
  • supervisory board — a board of management of which nonmanagerial workers are members, having supervisory powers over some aspects of management decision-making
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