18-letter words containing a, c, h, i, s
- sociotechnological — of, relating to, or signifying the combination or interaction of social and technological factors.
- sodium thiocyanate — a white powder or colorless, deliquescent crystals, NaSCN, used chiefly in organic synthesis and in medicine in the treatment of hypertension.
- soft touch sealing — Soft touch sealing is a copolymer seal for a tank, with characteristics designed for softness, used instead of a metal seal to help avoid fire when sparks are generated.
- spaghetti junction — an interchange, usually between motorways, in which there are a large number of underpasses and overpasses and intersecting roads used by a large volume of high-speed traffic
- spanish succession — War of thea war (1701-14) between European powers disputing the succession to the Spanish throne
- specialist teacher — a teacher with expertise in working with children with special educational needs, such as dyslexia
- 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
- 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.
- status asthmaticus — a severe attack of asthma in which the patient may die from respiratory failure if not treated with inhaled oxygen or other appropriate measures
- stinking chamomile — mayweed.
- stoichiometrically — of or relating to stoichiometry.
- stokely carmichael — Hoagland Howard [hohg-luh nd] /ˈhoʊg lənd/ (Show IPA), ("Hoagy") 1899–1981, U.S. songwriter and musician.
- strathclyde region — a former local government region in W Scotland: formed in 1975 from Glasgow, Renfrewshire, Lanarkshire, Buteshire, Dunbartonshire, and parts of Argyllshire, Ayrshire, and Stirlingshire; replaced in 1996 by the council areas of Glasgow, Renfrewshire, East Renfrewshire, Inverclyde, North Lanarkshire, South Lanarkshire, Argyll and Bute, East Dunbartonshire, West Dunbartonshire, North Ayrshire, South Ayrshire, and East Ayrshire
- stratigraphic trap — A stratigraphic trap is a rock formation that contains hydrocarbons and is sealed by other rock formations.
- sub-saharan africa — the region of Africa to the south of the Sahara desert
- submarine sandwich — a sandwich made with a long cylindrical bread roll
- substitute teacher — educator: replaces sb temporarily
- sulfuric anhydride — sulfur trioxide.
- survival mechanism — something you or your body does automatically, in order to survive in a dangerous or unpleasant situation
- swedish gymnastics — a system of passive and active exercising of muscles and joints
- 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.
- systematic phoneme — a phonological unit in generative phonology representing an underlying form that takes into account the relationship between phonological patterns and morphological variation, as the unit underlying the second vowel in both derive and derivative.
- teaching assistant — a graduate student in a college or university who is the recipient of a teaching fellowship. Abbreviation: TA.
- technical reserves — Technical reserves are amounts of money set aside to pay for underwriting liabilities.
- technical sergeant — a noncommissioned officer ranking below a master sergeant and above a staff sergeant.
- that's the ticket! — that's the correct or proper thing! that's right!
- the baptist church — any of various Protestant churches that believe in the baptism of believers
- the cat's whiskers — a person or thing that is excellent or superior
- the coast is clear — If you say that the coast is clear, you mean that there is nobody around to see you or catch you.
- the dismal science — a name for economics coined by Thomas Carlyle
- the practicalities — the real facts or details of a situation, as opposed to its theoretical aspects
- the south atlantic — the part of the Atlantic Ocean that lies to the south of the equator
- thioarsenious acid — any of a group of hypothetical acids, H3AsS3, HAsS2, and H4As2S5, known only in the forms of their salts
- 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.
- tick all the boxes — to satisfy all of the apparent requirements for success
- to lick into shape — If you lick, knock, or whip someone or something into shape, you use whatever methods are necessary to change or improve them so that they are in the condition that you want them to be in.
- to pick and choose — If you pick and choose, you carefully choose only things that you really want and reject the others.
- triphosphoric acid — the hypothetical acid H 5 P 3 O 10 , known chiefly by its salts.
- unenthusiastically — full of or characterized by enthusiasm; ardent: He seems very enthusiastic about his role in the play.
- warehouse capacity — the amount of storage space in a warehouse
- welland ship canal — a ship canal in S Canada, in Ontario, connecting Lakes Erie and Ontario: 8 locks. 25 miles (40 km) long.
- wernicke's aphasia — a type of aphasia caused by a lesion in Wernicke's area of the brain and characterized by grammatical but more or less meaningless speech and an apparent inability to comprehend speech.
- wheelchair housing — housing designed or adapted for a chairbound person
- whittaker chambers — Robert, 1802–71, Scottish publisher and editor.
- world championship — an international competition in a particular sport or activity for people all around the world