18-letter words containing p, a, r, t, s
- specimen signature — a signature to be compared to an original signature in order to verify someone's identity
- specrate_base_fp92 — (benchmark) A variant of SPECrate_fp92 that reports "baseline" results, using stricter run rules.
- spectroheliography — the process of obtaining an image of the sun in light of a particular wavelength, such as calcium or hydrogen, showing the distribution of the element over the surface and in the solar atmosphere, using a spectroheliograph
- spectropolarimeter — an instrument for determining the extent to which plane-polarized light of various wavelengths is rotated by certain solutions, consisting of a combination of a spectroscope and a polarimeter.
- spectropolariscope — an instrument combining the functions of a spectroscope with those of a polariscope.
- sperry corporation — (company) The company which merged with the Burroughs Corporation to form Unisys Corporation. Divisions included Sperry Univac, Sperry Flight Systems, and others. Some of these were sold off after the merger.
- spherical geometry — the branch of geometry that deals with figures on spherical surfaces.
- spherical triangle — a triangle formed by arcs of great circles of a sphere.
- spike-tooth harrow — a harrow equipped with straight teeth on horizontal bars, usually employed to smooth and level plowed soil or seedbeds for planting or sowing.
- spirits of ammonia — a 10% solution of ammonia in alcohol
- spotted flycatcher — a European woodland songbird, Muscicapa striata, with a greyish-brown streaked plumage: family Muscicapidae (Old World flycatchers)
- st. peter's square — a square surrounded by colonnades, forming a boundary of and an entrance to Vatican City, leading to St. Peter's: designed by Giovanni Bernini and built during the 17th century.
- stand-by passenger — someone who buys a (usually cheaper) ticket, if they are still available, on a plane just before it is about to leave rather than booking in advance
- statutory sick pay — the pay an employee is legally entitled to when sick
- stratigraphic trap — A stratigraphic trap is a rock formation that contains hydrocarbons and is sealed by other rock formations.
- stroustrup, bjarne — Bjarne Stroustrup
- sturt's desert pea — the desert pea
- subatomic particle — physics:
- super giant slalom — a slalom race in which the course is longer and has more widely spaced gates than in a giant slalom.
- super royal octavo — a book size, 63⁄4 by 101⁄4 inches
- super royal quarto — a book size, 101⁄4 by 131⁄2 inches
- supporting actress — an actress playing a supporting role
- supportive therapy — any treatment, such as the intravenous administration of certain fluids, designed to reinforce or sustain the physiological well-being of a patient
- supraorbital ridge — browridge.
- sustaining program — a radio or television program without a commercial sponsor.
- swartkrans ape-man — the fossil remains of the extinct hominid Australopithecus robustus, found at Swartkrans, Republic of South Africa: formerly classified in the genus Paranthropus.
- sweptwing aircraft — an aircraft which has wings that are swept (usually) backwards
- sympathetic strike — sympathy strike.
- sympathetic string — a thin wire string, as in various obsolete musical instruments, designed to vibrate sympathetically with the bowed or plucked strings to reinforce the sound.
- symphony orchestra — a large orchestra composed of wind, string, and percussion instruments and organized to perform symphonic compositions.
- system-programming — a program, as an operating system, compiler, or utility program, that controls some aspect of the operation of a computer (opposed to application program).
- systems programmer — a person whose job is to program systems software
- take the wraps off — to reveal
- temporal summation — the act or process of summing.
- temporary hardness — hardness of water due to the presence of magnesium and calcium hydrogencarbonates, which can be precipitated as carbonates by boiling
- terrestrial planet — inner planet.
- the baptist church — any of various Protestant churches that believe in the baptism of believers
- the lords temporal — (in Britain) peers other than bishops in their capacity as members of the House of Lords
- the passenger seat — the seat used by a passenger of a car, beside the driver
- the powers that be — You can refer to people in authority as the powers that be, especially when you want to say that you disagree with them or do not understand what they say or do.
- the practicalities — the real facts or details of a situation, as opposed to its theoretical aspects
- thiosulphuric acid — an unstable acid known only in solutions and in the form of its salts. Formula: H2S2O3
- threatened species — a species likely, in the near future, to become an endangered species within all or much of its range.
- thrills and spills — If you refer to thrills and spills, you are referring to an experience which is exciting and full of surprises.
- to all appearances — apparently
- to cast aspersions — If you cast aspersions on someone or something, you suggest that they are not very good in some way.
- to get a bad press — If someone or something gets a bad press, they are criticized, especially in the newspapers, on television, or on radio. If they get a good press, they are praised.
- to learn the ropes — If you are learning the ropes, you are learning how a particular task or job is done.
- to play favourites — to display favouritism
- to put years on sb — if you say that something such as an experience or a way of dressing has put years on someone, you mean that it has made them look or feel much older