18-letter words containing u, n, c, h, a
- schwarz inequality — Also called Cauchy's inequality. the theorem that the inner product of two vectors is less than or equal to the product of the magnitudes of the vectors.
- shugart technology — Seagate Technology
- 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.
- sound spectrograph — an electronic device for recording a sound spectogram.
- south saskatchewan — a river in W Canada, flowing E from S Alberta and joining the North Saskatchewan River to form the Saskatchewan River. 865 miles (1392 km) long.
- southern cameroons — German Kamerun. a region in W Africa: a German protectorate 1884–1919; divided in 1919 into British and French mandates.
- 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
- standard schnauzer — schnauzer.
- store launch event — A store launch event is a special event, which publicizes the opening of a new store and at which discounts and free samples may be offered.
- 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
- sulfuric anhydride — sulfur trioxide.
- survival mechanism — something you or your body does automatically, in order to survive in a dangerous or unpleasant situation
- teacher evaluation — the process of vetting teachers to maintain teaching standards
- teaching equipment — teaching aids
- technical knockout — the termination of a bout by the referee when it is the judgment of the attending physician, a boxer's seconds, or the referee that a boxer cannot continue fighting without sustaining severe or disabling injury. Abbreviation: TKO, T.K.O.
- the black mountain — a mountain range in S Wales, in E Carmarthenshire and W Powys. Highest peak: Carmarthen Van, 802 m (2632 ft)
- the general public — the people in a society; people in general
- the hunger marches — a number of processions by unemployed workers in the 1930s to protest against unemployment and deprivation
- the south atlantic — the part of the Atlantic Ocean that lies to the south of the equator
- thermonuclear bomb — hydrogen bomb.
- thioarsenious acid — any of a group of hypothetical acids, H3AsS3, HAsS2, and H4As2S5, known only in the forms of their salts
- touch-in-goal line — either of the two touchlines at each end of the field between the goal line and the dead-ball line.
- under the jackboot — If a country or group of people is under the jackboot, they are suffering because the government is cruel and undemocratic.
- unenthusiastically — full of or characterized by enthusiasm; ardent: He seems very enthusiastic about his role in the play.
- unification church — a religious sect that combines elements of Protestantism and Buddhism, founded by the Rev. Sun Myung Moon in 1954: many of its members live in communes sponsored by the sect.
- vulcan nerve pinch — (jargon) (Or "three-finger salute", Vulcan death grip; from the old "Star Trek" TV series via Commodore Amiga hackers) The keyboard combination that forces a soft boot or jump to ROM monitor (on machines that support such a feature). On an Amiga this is done with Ctrl/Right Amiga/Left Amiga; on IBM PCs and many microcomputers it is Ctrl/Alt/Del; on Suns, L1-A; on some Macintoshes, it is
- ! Silicon Graphics users are obviously the most dextrous however, as these machines use the five-finger combination: Left Shift/Left Ctrl/Left Alt/Keypad Divide/F12. Compare quadruple bucky. - wheelchair housing — housing designed or adapted for a chairbound person
- widemouth blindcat — any of several catfishes, as Satan eurystomus (widemouth blindcat) of Texas, that inhabit underground streams and have undeveloped eyes and unpigmented skin.