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17-letter words containing s, p, o, r, u

  • pyrosulfuric acid — a strong, crystalline acid, H2S2O7, prepared commercially as a heavy, oily, fuming liquid: used in making explosives and dyes, as a sulfating agent, etc.
  • refuse a proposal — If an insurer refuses a proposal, it does not agree to underwrite a risk proposed by a potential client.
  • reported question — A reported question is a question which is reported using a clause beginning with a word such as 'why' or 'whether', as in 'I asked her why she'd done it'.
  • request programme — a programme on the radio where listeners can request certain songs or tracks
  • res ipsa loquitur — the rule that an injury is due to the defendant's negligence when that which caused it was under his or her control or management and the injury would not have happened had proper management been observed.
  • rescue operations — operations or organized procedures to bring people or a person out of danger, attack, harm, etc
  • rhodope mountains — a mountain range in SE Europe, in the Balkan Peninsula extending along the border between Bulgaria and Greece. Highest peak: Golyam Perelik (Bulgaria), 2191 m (7188 ft)
  • rocket propulsion — propulsion of an object by thrust developed by a rocket.
  • rough puff pastry — a rich flaky pastry made with butter and used for pie-crusts, flans, etc
  • russell's paradox — a paradox of set theory in which an object is defined in terms of a class of objects that contains the object being defined, resulting in a logical contradiction.
  • safety precaution — a precaution that is taken in order to ensure that something is safe and not dangerous
  • school playground — school's outdoor recreation area
  • scrophulariaceous — belonging to the Scrophulariaceae, the figwort family of plants.
  • secondary product — a product that is not the main product of an industry; a by-product
  • self-purification — a natural process of purifying, as the ability of a body of water to rid itself of pollutants.
  • self-reproduction — the act or process of reproducing.
  • sensitivity group — a group of persons participating in sensitivity training.
  • sexual dimorphism — the condition in which the males and females in a species are morphologically different, as with many birds.
  • shetland pullover — a thick woollen sweater made from Shetland wool
  • shortcrust pastry — a basic type of pastry that is made with half the quantity of fat to flour, and has a crisp but crumbly texture
  • sodium propionate — a transparent, crystalline, water-soluble powder, C 3 H 5 NaO 2 , used in foodstuffs to prevent mold growth, and in medicine as a fungicide.
  • sodium pyroborate — borax1 .
  • 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.
  • sound spectrogram — a graphic representation, produced by a sound spectrograph, of the frequency, intensity, duration, and variation with time of the resonance of a sound or series of sounds.
  • southampton water — an inlet of the English Channel in S England
  • southern sporades — a group of Greek islands in the Aegean, including the Dodecanese, lying off the SW coast of Turkey
  • spectrum disorder — any of a group of disorders each having symptoms that occur on a continuum and certain features that are shared along its spectrum but that manifest in markedly different forms and degrees. See also autism spectrum disorder.
  • sperrin mountains — a mountain range in NW Northern Ireland
  • spiritual bouquet — the spiritual presentation of a good work to another person.
  • spot-illustration — a rounded mark or stain made by foreign matter, as mud, blood, paint, ink, etc.; a blot or speck.
  • spread your wings — if you spread your wings, you do something new and rather difficult or move to a new place, because you feel more confident in your abilities than you used to and you want to gain wider experience
  • stir one's stumps — to move or become active
  • storm in a teacup — a violent fuss or disturbance over a trivial matter
  • subscription rate — the price charged for a subscription
  • sulfurated potash — a yellowish-brown mixture consisting mainly of potassium polysulfides and potassium thiosulfate, used in treating mange.
  • super-nationalism — an extreme or fanatical loyalty or devotion to a nation.
  • superaerodynamics — the branch of aerodynamics that deals with gases at very low densities.
  • superalimentation — nourishment; nutrition.
  • supercolumniation — the placing of one order of columns above another.
  • 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.
  • supernova remnant — an expanding shell of gas, with accompanying strong radio and x-ray emissions, produced by a supernova.
  • superregeneration — regeneration in which a signal is alternately amplified and quenched at a frequency slightly above the audible range to achieve high sensitivity with a single tube.
  • superstitiousness — of the nature of, characterized by, or proceeding from superstition: superstitious fears.
  • 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
  • support mechanism — any formal system or method of providing support or assistance
  • suppressor t cell — a T cell capable of inhibiting the activity of B cells and other T cells.
  • supra-nationalism — outside or beyond the authority of one national government, as a project or policy that is planned and controlled by a group of nations.
  • supreme commander — the military officer commanding all allied forces in a theater of war.
  • surprise symphony — the Symphony No. 94 in G major (1791) by Franz Josef Haydn.
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