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15-letter words containing t, o, r, s, i

  • ribonucleotides — an ester, composed of a ribonucleoside and phosphoric acid, that is a constituent of ribonucleic acid.
  • right ascension — the arc of the celestial equator measured eastward from the vernal equinox to the foot of the great circle passing through the celestial poles and a given point on the celestial sphere, expressed in degrees or hours.
  • right of asylum — the right of alien fugitives to protection or nonextradition in a country or its embassy.
  • right of search — the privilege of a nation at war to search neutral ships on the high seas for contraband or other matter, carried in violation of neutrality, that may subject the ship to seizure.
  • right to choose — the right of a woman to have a legal abortion if she chooses to do so.
  • rite of passage — Anthropology. a ceremony performed to facilitate or mark a person's change of status upon any of several highly important occasions, as at the onset of puberty or upon entry into marriage or into a clan.
  • riverworthiness — (of a boat) the quality or state of being riverworthy
  • roaring forties — the stormy oceanic areas between 40° and 50° south latitude
  • robert guiscard — Robert [French raw-ber] /French rɔˈbɛr/ (Show IPA), (Robert de Hauteville) c1015–85, Norman conqueror in Italy.
  • robin redbreast — robin (defs 1, 2).
  • rochester hills — city in SE Mich., near Detroit: pop. 69,000
  • rocky mountains — mountain range in USA and Canada
  • rogation sunday — the fifth Sunday after Easter; it sees the start of the supplications that are continued during the following Monday, Tuesday and Wednesday
  • roger bannister — Sir Roger (Gilbert) born 1929, English track and field athlete: first to run a mile in less than four minutes.
  • rolling targets — a series of targets which are reviewed periodically so that they always extend for the same period into the future
  • rouget de lisle — Claude Joseph [klohd zhaw-zef] /kloʊd ʒɔˈzɛf/ (Show IPA), 1760–1836, French army officer and composer of songs: wrote and composed Marseillaise.
  • round the twist — mad; eccentric
  • round whitefish — a whitefish, Prosopium cylindraceum, found in northern North America and Siberia, having silvery sides and a dark bronze back.
  • rowland heights — a city in SW California, near Los Angeles.
  • rub elbows with — the bend or joint of the human arm between upper arm and forearm.
  • rubber solution — a kind of rubber-based adhesive
  • rules committee — a special committee of a legislature, as of the U.S. House of Representatives, having the authority to establish rules or methods for expediting legislative action, and usually determining the date a bill is presented for consideration.
  • sales promotion — the methods or techniques for creating public acceptance of or interest in a product, usually in addition to standard merchandising techniques, as advertising or personal selling, and generally consisting of the offer of free samples, gifts made to a purchaser, or the like.
  • sanitary cordon — cordon sanitaire.
  • saprophytically — any organism that lives on dead organic matter, as certain fungi and bacteria.
  • sarcoptic mange — mange caused by burrowing mites of the genus Sarcoptes.
  • satin bowerbird — the largest Australian bowerbird, Ptilonorhynchus violaceus, the male of which has lustrous blue plumage
  • scatter cushion — Scatter cushions are small cushions for use on sofas and chairs.
  • schillerization — the process of altering crystals to produce schiller
  • school district — A school district is an area which includes all the schools that are situated within that area and are governed by a particular authority.
  • scpi consortium — (body)   A body established to promote Standard Commands for Programmable Instruments. Address: 8380 Hercules Drive, Suite P3, La Mesa, CA 91942, USA.
  • scratching post — a block or post of wood, usually covered with carpeting, on which a cat can use its claws.
  • scsi controller — SCSI adaptor
  • secret mosquito — a high-pitched ringtone for a mobile phone, claimed by its distributors to be inaudible to most adults while remaining audible to children and teenagers
  • secundogeniture — the state of being the second born child
  • security forces — police or soldiers responsible for maintaining security
  • security police — a police force responsible for maintaining order at a specific locale or under specific circumstances, as at an airport or factory.
  • segregationists — one who favors, encourages, or practices segregation, especially racial segregation.
  • seidlitz powder — a laxative consisting of two powders, tartaric acid and a mixture of sodium bicarbonate and Rochelle salt (sodium potassium tartrate)
  • self perception — the act or faculty of perceiving, or apprehending by means of the senses or of the mind; cognition; understanding.
  • self-absorption — preoccupation with oneself or one's own affairs.
  • self-admiration — a feeling of wonder, pleasure, or approval.
  • self-authorized — given or endowed with authority: an authorized agent.
  • self-correcting — automatically adjusting to or correcting mistakes, malfunctions, etc.: a self-correcting mechanism.
  • self-forgetting — self-forgetful.
  • self-generation — production or reproduction of something without the aid of an external agent; spontaneous generation.
  • self-laceration — the result of lacerating; a rough, jagged tear.
  • self-monitoring — (especially formerly) a student appointed to assist in the conduct of a class or school, as to help take attendance or keep order.
  • self-perception — the act or faculty of perceiving, or apprehending by means of the senses or of the mind; cognition; understanding.
  • self-production — produced by oneself or itself.
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