17-letter words containing i, r, s, o
- sleeping problems — difficulties in getting to sleep or in staying asleep
- slenderness ratio — aspect ratio (def 4a).
- slenderness-ratio — Aeronautics. the ratio of the span of an airfoil to its mean chord.
- slings and arrows — Slings and arrows are unpleasant things that happen to you and that are not your fault.
- slip-joint pliers — pliers having a sliding joint, permitting the span of the jaws to be adjusted.
- smarandache logic — neutrosophic logic
- smoke and mirrors — (used with a singular or plural verb) something that distorts or blurs facts, figures, etc., like a magic or conjuring trick; artful deception.
- smoke-filled room — a place, as a hotel room, for conducting secret negotiations, effecting compromises, devising strategy, etc.
- smoothing circuit — a circuit used to remove ripple from the output of a direct current power supply
- social democratic — A social democratic party is a political party whose principles are based on social democracy.
- social enterprise — a business organization that works to benefit society as a whole
- social networking — the development of social and professional contacts; the sharing of information and services among people with a common interest.
- social notworking — the practice of spending time unproductively on social networking websites, esp when one should be working
- socialist realism — a state-approved artistic or literary style in some socialist countries, as the U.S.S.R., that characteristically celebrates an idealized vision of the life and industriousness of the workers.
- socratic elenchus — the drawing out of the consequences of a position in order to show them to be contrary to some accepted position
- sodium bichromate — a red or orange crystalline, water-soluble solid, Na 2 Cr 2 O 7 ⋅2H 2 O, used as an oxidizing agent in the manufacture of dyes and inks, as a corrosion inhibitor, a mordant, a laboratory reagent, in the tanning of leather, and in electroplating.
- sodium dichromate — a red or orange crystalline, water-soluble solid, Na 2 Cr 2 O 7 ⋅2H 2 O, used as an oxidizing agent in the manufacture of dyes and inks, as a corrosion inhibitor, a mordant, a laboratory reagent, in the tanning of leather, and in electroplating.
- 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.
- software engineer — a person who writes computer programs
- 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.
- solicitor general — a law officer who maintains the rights of the state in suits affecting the public interest, next in rank to the attorney general.
- sorolla y bastida — Joaquín [hwah-keen] /ʰwɑˈkin/ (Show IPA), 1863–1923, Spanish painter.
- south farmingdale — a town on central Long Island, in SE New York.
- south frigid zone — the part of the earth's surface between the Antarctic Circle and the South Pole.
- south lanarkshire — a council area of S Scotland, comprising the S part of the historical county of Lanarkshire: included within Strathclyde Region from 1975 to 1996: has uplands in the S and part of the Glasgow conurbation in the N: mainly agricultural. Administrative centre: Hamilton. Pop: 303 010 (2003 est). Area: 1771 sq km (684 sq miles)
- south west africa — a former name of Namibia.
- south-west africa — a former name of Namibia.
- southern rhodesia — a former name (until 1964) of Zimbabwe (def 1).
- southern studfish — See under studfish.
- southern triangle — the constellation Triangulum Australe.
- spectroheliograph — an apparatus for making photographs of the sun with a monochromatic light to show the details of the sun's surface and surroundings as they would appear if the sun emitted only that light.
- spectrohelioscope — a spectroheliograph.
- spectromicroscope — a microscope with an attached spectroscope.
- spectroradiometer — an instrument for determining the radiant-energy distribution in a spectrum, combining the functions of a spectroscope with those of a radiometer.
- spectroscopically — an optical device for producing and observing a spectrum of light or radiation from any source, consisting essentially of a slit through which the radiation passes, a collimating lens, and an Amici prism.
- 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.
- speech correction — the reeducation of speech habits that deviate from accepted speech standards.
- speed restriction — the maximum speed allowed for road vehicles, trains, or other vehicles
- spenserian sonnet — a sonnet employing the rhyme scheme abab, bcbc, cdcd, ee.
- sperrin mountains — a mountain range in NW Northern Ireland
- spherical polygon — a closed figure formed by arcs of great circles on a spherical surface.
- spiny-headed worm — any of a small group of endoparasites of the phylum Acanthocephala, as larvae parasitic in insects and crustaceans and as adults in various vertebrates.
- spiritual bouquet — the spiritual presentation of a good work to another person.
- split keyboarding — the act or practice of editing data from one terminal on another terminal
- split personality — multiple personality.
- sports facilities — places and things for doing sports
- spot-illustration — a rounded mark or stain made by foreign matter, as mud, blood, paint, ink, etc.; a blot or speck.
- spotted sandpiper — a North American sandpiper, Actitis macularia, that has brownish-gray upper parts and white underparts, and is spotted with black in the summer.