15-letter words containing a, e, r, o, p, t
- retro-operative — affecting or operating on past events; retroactive
- retroperitoneal — of or relating to the area behind the abdominal lining, where organs such as the kidneys and bladder are located
- río de la plata — Rí·o de la [ree-aw th e lah] /ˈri ɔ ðɛ lɑ/ (Show IPA) an estuary on the SE coast of South America between Argentina and Uruguay, formed by the Uruguay and Paraná rivers, about 185 miles (290 km) long.
- 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.
- rocket airplane — an airplane propelled wholly or mainly by a rocket engine.
- roentgenography — roentgenogram.
- roentgenoparent — visible by means of x-rays.
- 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.
- samuel prescott — Samuel, 1751–77, U.S. patriot during the American Revolution: rode with Paul Revere and William Dawes to warn Colonists that British troops were marching from Boston, April 18, 1775.
- sarcoptic mange — mange caused by burrowing mites of the genus Sarcoptes.
- saturated vapor — a vapor whose temperature and pressure are such that any compression of its volume at constant temperature causes it to condense to liquid at a rate sufficient to maintain a constant pressure.
- scrape together — to deprive of or free from an outer layer, adhering matter, etc., or to smooth by drawing or rubbing something, especially a sharp or rough instrument, over the surface: to scrape a table to remove paint and varnish.
- seafood platter — a plate of assorted seafood, served in a restaurant
- self-absorption — preoccupation with oneself or one's own affairs.
- separate school — (in Canada) a school for a large religious minority financed by its rates and administered by its own school board but under the authority of the provincial department of education
- septentrionally — northwards; in the direction of the north
- simple fraction — a ratio of two integers.
- simple majority — less than half of the total votes cast but more than the minimum required to win, as when there are more than two candidates or choices.
- sinorespiratory — of, relating to, or affecting the paranasal sinuses and the respiratory tract.
- somatic therapy — any of a group of treatments presumed to act on biological factors leading to mental illness.
- southern paiute — See under Paiute (def 2).
- spanish trefoil — alfalfa.
- spare no effort — do all you can
- spark generator — an alternating-current power source with a condenser discharging across a spark gap.
- spectator sport — any sport that can be watched by spectators, as football or basketball, usually for a fee.
- spectrochemical — of, relating to, or utilizing the techniques of spectrochemistry.
- speed indicator — an instrument for counting the number of revolutions of a gasoline engine.
- spermatoblastic — relating to a spermatoblast
- spermatogenesis — the origin and development of spermatozoa.
- sphaerosiderite — a type of siderite
- spheroidization — the conversion of grains into spheroids
- spiral notebook — a notebook held together by a coil of wire passed through small holes punched at the back edge of the covers and individual pages
- spirochaetaemia — the presence of spirochaetes in the blood
- sport one's oak — to shut this door as a sign one does not want visitors
- sporting chance — an even or fair opportunity for a favorable outcome in an enterprise, as winning in a game of chance or in any kind of contest: They gave the less experienced players a sporting chance by handicapping the experts.
- spread the word — make others aware
- steak au poivre — pepper steak (def 2).
- stereotypically — in a stereotypical manner
- strephosymbolia — a condition of perceiving objects as their mirror image and, specifically, having difficulty in distinguishing letters in words
- streptobacillus — any of various bacilli that form in chains.
- stretch a point — a sharp or tapering end, as of a dagger.
- subperiosteally — the normal investment of bone, consisting of a dense, fibrous outer layer, to which muscles attach, and a more delicate, inner layer capable of forming bone.
- substratosphere — the upper troposphere.
- superexaltation — extreme or supreme exaltation; the act of superexalting; the process or condition of being superexalted
- superexcitation — the act of exciting.
- superior planet — any of the five planets whose orbits are outside the orbit of the earth, namely, the planets Mars, Jupiter, Saturn, Uranus, and Neptune.
- superordination — Logic. the relation between a universal proposition and a particular proposition of the same quality containing the same terms in the same order.
- superpatriotism — the quality of being superpatriotic
- sweep the board — (in gambling) to win all the cards or money
- system operator — a person who maintains a computer system or network, especially one who operates a computer bulletin board.