19-letter words containing p, r, i, s
- simple closed curve — a curve that is closed and that has no loops or points missing; a curve for which there exists a homeomorphism mapping it to a circle.
- single-cell protein — a protein produced or derived from the culture of a single-celled organism, used as a food supplement or substitute. Abbreviation: SCP.
- sleepy hollow chair — an armchair of the mid-19th century, sometimes on rockers, having a single piece forming a high upholstered back and a concave upholstered seat.
- slugging percentage — a number expressing a player's average effectiveness in making extra-base hits, calculated by dividing the total number of bases (from all singles, doubles, triples, and home runs) by the number of official at bats
- smoking compartment — a compartment of a train where smoking is permitted
- social anthropology — study of human culture
- sodium hypochlorite — a pale-green, crystalline compound, NaOCl, unstable in air, soluble in cold water, decomposes in hot water: used as a bleaching agent for paper and textiles, in water purification, in household use, and as a fungicide.
- southern hemisphere — the half of the earth between the South Pole and the equator.
- spanish west africa — a former overseas territory of Spain in NW Africa: divided in 1958 into the overseas provinces of Ifni and Spanish Sahara
- special air service — a regiment in the British Army specializing in clandestine operations
- special partnership — limited partnership.
- specific characters — the persistent features that distinguish one species from all others
- specific resistance — resistivity (def 2).
- specific-resistance — the power or property of resistance.
- specular reflection — Specular reflection is reflection of heat or light in which the angles of different parts of the surface are important.
- sphere of influence — any area in which one nation wields dominant power over another or others.
- spherical astronomy — the branch of astronomy dealing with the determination of the positions of celestial bodies on the celestial sphere.
- spider-hunting wasp — any solitary wasp of the superfamily Pompiloidea, having a slender elongated body: the fast-running female hunts spiders as a food store for her larvae
- spin quantum number — the quantum number that designates the total angular momentum associated with electron spin and has a value of ½ in units of h /2π.
- spirit of hartshorn — a colorless, pungent, suffocating, aqueous solution of about 28.5 percent ammonia gas: used chiefly as a detergent, for removing stains and extracting certain vegetable coloring agents, and in the manufacture of ammonium salts.
- splinterproof glass — glass that is designed not to form sharp splinters should it be shattered
- spotted wintergreen — an evergreen plant, Chimaphila maculata, of central North America, having leaves with mottled-white veins and white, fragrant flowers.
- spread oneself thin — to draw, stretch, or open out, especially over a flat surface, as something rolled or folded (often followed by out).
- stabilization print — a print made by the stabilization process.
- stakeholder pension — In Britain, a stakeholder pension is a flexible pension scheme with low charges. Both employees and the state contribute to the scheme, which is optional, and is in addition to the basic state pension.
- standing broad jump — a jump for distance from a standing position.
- stationers' company — a company or guild of the city of London composed of booksellers, printers, dealers in writing materials, etc., incorporated in 1557.
- stationery cupboard — a cupboard where things like paper, pens and paper clips are kept
- streaming potential — the potential produced in the walls of a porous membrane or a capillary tube by forcing a liquid through it.
- strict counterpoint — the application of the rules of counterpoint as an academic exercise
- subnuclear particle — any of the elementary particles, including those that do not exist in stable matter but appear as a result of high-energy collisions of other particles or nuclei.
- substitution cipher — a cipher that replaces letters of the plain text with another set of letters or symbols.
- subtractive process — a process of color photography in which the colors are formed by combination of cyan, yellow, and magenta lights.
- succession of crops — the continuous cultivation of a crop throughout a season by successive plantings or by the use of varieties with different rates of growth.
- superannuation fund — a fund used for paying pensions
- supercritical fluid — A supercritical fluid is a fluid at a temperature and pressure at which there is no difference between liquid and gas.
- superhigh frequency — any frequency between 3000 and 30,000 megahertz. Abbreviation: SHF.
- superiority complex — an exaggerated feeling of one's own superiority.
- supernatural virtue — one of the three graces: faith, hope, or charity, infused into the human intellect and will by a special grace of God.
- supreme de volaille — suprême (def 2).
- surface effect ship — a large, ship-size air cushion vehicle operated over water.
- surplus reinsurance — Surplus reinsurance is reinsurance of amounts over a specified amount of insurance.
- suspension geometry — Suspension geometry is the geometric arrangement of the parts of a suspension system, and the value of the lengths and angles within it.
- suspensory ligament — any of several tissues that suspend certain organs or parts of the body, especially the transparent, delicate web of fibrous tissue that supports the crystalline lens.
- symptomatic anthrax — blackleg.
- tamper-evident seal — A tamper-evident seal is a sealing device designed to reveal if the opening of a container has been interfered with.
- tarnished plant bug — a bug, Lygus lineolaris, of the family Miridae, that is a common and widely distributed pest of alfalfa and other legumes and of peach and other fruit trees.
- telescopic umbrella — an umbrella having parts that telescope
- the eroica symphony — Symphony No. 3 in E flat major by Ludwig van Beethoven
- the hampshire downs — a range of low chalk hills that crosses Hampshire in S England