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17-letter words containing a, n, o, p, i, s

  • rescue operations — operations or organized procedures to bring people or a person out of danger, attack, harm, etc
  • respiratory chain — a series of mitochondrial proteins that transport electrons of hydrogen, released in the Krebs cycle, from acetyl coenzyme A to inhaled oxygen to form H 2 O: the energy released in the process is conserved as ATP.
  • 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)
  • roseate spoonbill — a tropical New World spoonbill, Ajaia ajaja, having rose-colored plumage and a bare head.
  • rotation of crops — a system of rotating in a fixed order the kinds of crops, as grain or grass, grown in the same field, to maintain soil fertility
  • sable island pony — a variety of wild pony found on Sable Island, Nova Scotia
  • safety inspection — an inspection of a place carried out to ensure that it is safe and not dangerous
  • safety precaution — a precaution that is taken in order to ensure that something is safe and not dangerous
  • saint christopher — Saint, died a.d. c250, Christian martyr.
  • sandwich compound — any of a class of organometallic compounds whose molecules have a metal atom or ion bound between two plane parallel organic rings
  • self-appreciation — gratitude; thankful recognition: They showed their appreciation by giving him a gold watch.
  • self-emancipation — the act of emancipating.
  • self-incompatible — not capable of self-pollination.
  • self-presentation — an act of presenting.
  • self-preservation — preservation of oneself from harm or destruction.
  • self-purification — a natural process of purifying, as the ability of a body of water to rid itself of pollutants.
  • semi-professional — actively engaged in some field or sport for pay but on a part-time basis: semiprofessional baseball players.
  • sensory paralysis — impairment or loss of sensation in a part or area of the body
  • separation center — a place at which military personnel are processed for release from active service.
  • separation energy — binding energy (def 1).
  • shooting practice — practice in shooting for soldiers or other people who shoot guns
  • shopping bag lady — bag lady (def 1).
  • shopping-bag lady — bag lady (def 1).
  • sino-japanese war — the war (1894–95) between China and Japan over the control of Korea that resulted in the nominal independence of Korea and the Chinese cession to Japan of Formosa and the Pescadores.
  • slap on the wrist — a sharp blow or smack, especially with the open hand or with something flat.
  • sleep deprivation — a condition in which you have not had enough sleep
  • social enterprise — a business organization that works to benefit society as a whole
  • 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.
  • spaghettification — the theoretical stretching of an object as it encounters extreme differences in gravitational forces, especially those associated with a black hole.
  • span of attention — attention span.
  • spatial summation — the act or process of summing.
  • speak one's piece — a separate or limited portion or quantity of something: a piece of land; a piece of chocolate.
  • special constable — a person recruited for temporary or occasional police duties, esp in time of emergency
  • special education — education that is modified or particularized for those with singular needs, as disabled or maladjusted people, slow learners, or gifted children.
  • special schooling — the system of educating children with special needs in schools designed to meet their needs
  • 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.
  • spit in the ocean — a variety of poker in which four cards are dealt face down to each player and one card, forming the fifth for all hands, is dealt face up in the center of the table, the exposed card and others of its denomination being wild cards.
  • split keyboarding — the act or practice of editing data from one terminal on another terminal
  • split personality — multiple personality.
  • spoonbill catfish — flathead catfish.
  • 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.
  • 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
  • spring cankerworm — the striped, green caterpillar of any of several geometrid moths: a foliage pest of various fruit and shade trees, as Paleacrita vernata (spring cankerworm) and Alsophila pometaria (fall cankerworm)
  • stand-up comedian — performer: tells jokes
  • steamboat springs — a town in NW Colorado: ski resort.
  • steamship company — a company which has a fleet of steamships
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