17-letter words containing i, s, o, p
- semi-professional — actively engaged in some field or sport for pay but on a part-time basis: semiprofessional baseball players.
- semisophisticated — somewhat sophisticated.
- sensitivity group — a group of persons participating in sensitivity training.
- 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).
- settlement option — any of the options, other than immediate payment in a lump sum, by which the policyholder or beneficiary may choose to have the benefits of a policy paid.
- sexual dimorphism — the condition in which the males and females in a species are morphologically different, as with many birds.
- shooting practice — practice in shooting for soldiers or other people who shoot guns
- shopping bag lady — bag lady (def 1).
- shopping precinct — pedestrian area with shops
- shopping-bag lady — bag lady (def 1).
- shuttle diplomacy — diplomatic negotiations carried out by a mediator who travels back and forth between the negotiating parties.
- simple microscope — a microscope having a single lens.
- 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.
- six-speed gearbox — a gearbox containing a system of six gears
- 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
- sleeper terrorist — a terrorist who is not currently active but assumes a guise in order to be in position, unsuspected, for future terrorist activities
- sleeping position — the position that you sleep in
- sleeping problems — difficulties in getting to sleep or in staying asleep
- slip-joint pliers — pliers having a sliding joint, permitting the span of the jaws to be adjusted.
- social enterprise — a business organization that works to benefit society as a whole
- social psychology — the psychological study of social behavior, especially of the reciprocal influence of the individual and the group with which the individual interacts.
- 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.
- 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 committee — a committee, as of a legislative body, that is formed to examine and report on a specific bill or issue.
- 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
- 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.
- spin one's wheels — a circular frame or disk arranged to revolve on an axis, as on or in vehicles or machinery.
- 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.
- 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.