12-letter words containing e, s, p, o
- skeuomorphic — an ornament or design on an object copied from a form of the object when made from another material or by other techniques, as an imitation metal rivet mark found on handles of prehistoric pottery.
- skew polygon — the figure formed by joining four or more points, not all in one plane, by the same number of lines
- slash pocket — a pocket set into a garment, especially below the waistline, to which easy access is provided by an exterior, vertical or diagonal slit.
- sleep apnoea — the temporary cessation of breathing during sleep, which in some cases is due to obstruction of the upper airway by enlarged tonsils, uvula, etc, causing the sufferer to snore loudly and fight for breath
- sleep around — to take the rest afforded by a suspension of voluntary bodily functions and the natural suspension, complete or partial, of consciousness; cease being awake.
- sleep it off — to rid oneself of the effects of some excess, overindulgence, etc., specif. of the aftereffects of drinking much alcoholic liquor, by sleeping
- sleeper goby — any gobioid fish of the family Eleotridae, of brackish or fresh tropical waters, resembling the gobies but lacking a ventral sucker
- slipper foot — an elongated pad foot.
- slipper sock — a sock with a soft leather or vinyl sole sewn onto it, used as indoor footwear.
- sloop-rigged — (of a sailboat) fore-and-aft rigged with a mainsail and a jib.
- sloped roman — a roman (vertical) typeface, usually sans serif, i.e. without the small, decorative, terminal strokes with which some typefaces are designed. The typeface is made to slope (usually to the right), but not generally to the same degree as a true italic typeface
- sloppy joe's — a sandwich of ground beef cooked in a spicy tomato or barbecue sauce and usually served on a bun.
- smoke jumper — an employee of the forest service parachuted to strategic spots in fighting forest fires
- snobographer — a person who writes about snobs
- snooperscope — a device that displays on a fluorescent screen reflected infrared radiation, enabling the user to see objects obscured by darkness.
- snow leopard — a long-haired, leopardlike feline, Panthera (Uncia) uncia, of mountain ranges of central Asia, having a relatively small head and a thick, creamy-gray coat with rosette spots: an endangered species.
- snowy mespil — a N American tree, Amelanchier Lamarckii, that produces small white flowers in spring
- snowy plover — a small plover, Charadrius alexandrinus, mainly of the U.S. and Mexico, having a white breast and sand-colored upper parts.
- soccer pitch — the field of play used in soccer
- soil profile — a vertical succession of horizons, commonly lettered A, B, C (beginning at the surface), that have been subjected to soil-forming processes, chiefly leaching and oxidation.
- solar plexus — Also called celiac plexus. Anatomy. a network of nerves situated at the upper part of the abdomen, behind the stomach and in front of the aorta.
- somatopleure — the double layer formed by the association of the upper layer of the lateral plate of mesoderm with the overlying ectoderm, functioning in the formation of the body wall and amnion.
- somers point — a town in SE New Jersey.
- sophisticate — a sophisticated person.
- soporiferous — bringing sleep; soporific.
- soprano clef — a sign locating middle C on the bottom line of the staff.
- soup kitchen — a place where food, usually soup, is served at little or no charge to the needy.
- south platte — a river flowing NE from central Colorado to the Platte River in W Nebraska. 424 miles (683 km) long.
- spaciousness — containing much space, as a house, room, or vehicle; amply large.
- spatter cone — a low, steep-sided volcanic cone built up of droplets or blobs of lava erupted from a fissure or vent.
- speakerphone — a telephone or telephone attachment equipped with both loudspeaker and microphone, thus permitting the instrument to be used without being held.
- special sort — a character, such as an accented letter, that is not a usual member of any font
- speciational — relating to speciation
- speciousness — apparently good or right though lacking real merit; superficially pleasing or plausible: specious arguments.
- specksioneer — a whaler
- spectatorial — a person who looks on or watches; onlooker; observer.
- spectrograph — a spectroscope for photographing or producing a representation of a spectrum.
- spectrometer — an optical device for measuring wavelengths, deviation of refracted rays, and angles between faces of a prism, especially an instrument (prism spectrometer) consisting of a slit through which light passes, a collimator, a prism that deviates the light, and a telescope through which the deviated light is viewed and examined.
- spectrometry — an optical device for measuring wavelengths, deviation of refracted rays, and angles between faces of a prism, especially an instrument (prism spectrometer) consisting of a slit through which light passes, a collimator, a prism that deviates the light, and a telescope through which the deviated light is viewed and examined.
- spectroscope — 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.
- spectroscopy — the science that deals with the use of the spectroscope and with spectrum analysis.
- speech organ — any part of the body, as the tongue, velum, diaphragm, or lungs, that participates, actively or passively, voluntarily or involuntarily, in the production of the sounds of speech.
- speech sound — any of the set of distinctive sounds of a given language. Compare phoneme.
- speedboating — the act, practice, or sport of traveling in a speedboat.
- speleologist — the exploration and study of caves.
- spermagonium — Botany, Mycology. spermogonium.
- spermatocele — a swelling of the testicle
- spermatocide — spermicide.
- spermatocyte — a male germ cell (primary spermatocyte) that gives rise by meiosis to a pair of haploid cells (secondary spermatocytes) that give rise in turn to spermatids.
- spermatozoid — a motile male gamete produced in an antheridium.