17-letter words containing c, h, e, s
- sixth commandment — “Thou shalt not kill”: sixth of the Ten Commandments.
- skate on thin ice — to place oneself in a dangerous or delicate situation
- smarandache logic — neutrosophic logic
- snatch one's time — to leave a job, taking whatever pay is due
- socratic elenchus — the drawing out of the consequences of a position in order to show them to be contrary to some accepted position
- sodium bichromate — a red or orange crystalline, water-soluble solid, Na 2 Cr 2 O 7 ⋅2H 2 O, used as an oxidizing agent in the manufacture of dyes and inks, as a corrosion inhibitor, a mordant, a laboratory reagent, in the tanning of leather, and in electroplating.
- sodium dichromate — a red or orange crystalline, water-soluble solid, Na 2 Cr 2 O 7 ⋅2H 2 O, used as an oxidizing agent in the manufacture of dyes and inks, as a corrosion inhibitor, a mordant, a laboratory reagent, in the tanning of leather, and in electroplating.
- south sea company — a British joint stock company that traded in South America in the 18th century. The South Sea Company took over the national debt in return for a monopoly of trade with the South Seas, causing feverish speculation in their stocks, and a financial crash in 1720 (the South Sea Bubble)
- south west africa — a former name of Namibia.
- south-west africa — a former name of Namibia.
- spaghettification — the theoretical stretching of an object as it encounters extreme differences in gravitational forces, especially those associated with a black hole.
- special schooling — the system of educating children with special needs in schools designed to meet their needs
- specific humidity — the ratio of the mass of water vapor in air to the total mass of the mixture of air and water vapor.
- 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.
- spectrophotometer — an instrument for making photometric comparisons between parts of spectra.
- spectrophotometry — an instrument for making photometric comparisons between parts of spectra.
- speech correction — the reeducation of speech habits that deviate from accepted speech standards.
- speech difficulty — a problem encountered in speaking
- speech impediment — speaking disorder
- spherical polygon — a closed figure formed by arcs of great circles on a spherical surface.
- 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.
- spongy parenchyma — the lower layer of the ground tissue of a leaf, characteristically containing irregularly shaped cells with relatively few chloroplasts and large intercellular spaces.
- spore mother cell — a cell from which a spore is produced
- spruce gall aphid — any of various homopterous insects of the family Adelgidae, as Adelges abietis (spruce gall aphid) and Pineus pinifoliae (pine leaf aphid) that feed and form galls on conifers.
- square the circle — a rectangle having all four sides of equal length.
- squaw huckleberry — deerberry.
- squeegee merchant — a person who attempts to make money by squeegeeing the windscreens of cars that are stopped at traffic lights and then asking for payment
- stannous chloride — a white, crystalline, water-soluble solid, SnCl 2 ⋅2H 2 O, used chiefly as a reducing and tinning agent, and as a mordant in dyeing with cochineal.
- stare in the face — to gaze fixedly and intently, especially with the eyes wide open.
- steamship company — a company which has a fleet of steamships
- stenothermophilic — growing best within a narrow temperature range.
- stick to the ribs — to pierce or puncture with something pointed, as a pin, dagger, or spear; stab: to stick one's finger with a needle.
- stretch limousine — a limousine that has been lengthened to provide extra seating accommodation and more legroom
- stretching course — (in brickwork) a course of stretchers.
- sulfonyl chloride — a colorless liquid, SO 2 Cl 2 , having a very pungent odor and corrosive to the skin and mucous membranes: used as a chlorinating or sulfonating agent.
- support mechanism — any formal system or method of providing support or assistance
- swaddling clothes — cloth for wrapping around a baby
- sydenham's chorea — a form of chorea affecting children, often associated with rheumatic fever
- sympathetic magic — magic predicated on the belief that one thing or event can affect another at a distance as a consequence of a sympathetic connection between them.
- synchronous speed — the speed at which an alternating-current machine must operate to generate electromotive force at a given frequency.
- synthetic biology — the application of computer science techniques to create artificial biological systems
- synthetic phonics — a method of teaching people to read by training them to pronounce sounds associated with particular letters in isolation and then blend them together
- tay-sachs disease — a rare fatal hereditary disease, occurring chiefly in infants and children, especially of eastern European Jewish origin, characterized by a red spot on the retina, gradual blindness, and paralysis.
- teachers' college — a college, usually having a four-year curriculum and granting a bachelor's degree, for training teachers for elementary and secondary schools
- teaching hospital — a hospital associated with a medical college and offering clinical and other facilities to those in various areas of medical study, as students, interns, and residents.
- teaching software — computer software for use in providing online education
- technical support — an advising and troubleshooting service provided by a manufacturer, typically a software or hardware developer, to its customers, often online or on the telephone.
- telephone service — a company or public utility that provides a telephone-operating service
- that's the ticket — that is exactly what's needed