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18-letter words containing n, i, y

  • science dictionary — a specialized dictionary covering terms in the life, earth, and physical sciences, such as the online Science Dictionary on Dictionary.com. A science dictionary includes many technical terms with precise, specialized meanings—terms not normally found in general dictionaries—making it an invaluable resource for students and professionals in scientific fields.
  • secondary deviance — deviant behavior that results from being publicly labeled as deviant and treated as an outsider.
  • secondary diagonal — a diagonal line or plane.
  • secondary emission — the emission of electrons (secondary electrons) from a material that is bombarded with electrons or ions.
  • secondary industry — manufacturing, services, etc.
  • secondary offering — the sale of a large block of outstanding stock off the floor of an exchange, usually by a major stockholder.
  • secondary syphilis — the second stage of syphilis, characterized by eruptions of the skin and mucous membrane.
  • secretarial agency — a recruiting business which deals with jobs for secretaries
  • securities analyst — an expert who advises on investment in securities such as stocks, shares and bonds
  • security agreement — business: contract
  • security clearance — access to top secret information
  • security of tenure — (in Britain) the right of a tenant to continue to occupy a dwelling or site unless the landlord obtains a court order for possession of the property or termination of the tenancy agreement
  • self-contradictory — an act or instance of contradicting oneself or itself.
  • self-deprecatingly — in a self-deprecating manner
  • semi-microanalysis — any analytical method in which the weight of the sample is between 10 and 100 milligrams.
  • separation anxiety — the normal fear and apprehension expressed by infants when removed from their mothers or approached by strangers.
  • shrubby cinquefoil — a small shrub, Potentilla fruticosa, of the rose family, native to the Northern temperate region, having pinnate leaves and numerous, showy, bright-yellow flowers.
  • significant symbol — a verbal or nonverbal gesture, as a word or smile, that has acquired a conventionalized meaning.
  • silvery cinquefoil — any of several plants belonging to the genus Potentilla, of the rose family, having yellow, red, or white five-petaled flowers, as P. reptans (creeping cinquefoil) of the Old World, or P. argentea (silvery cinquefoil) of North America.
  • silvery spleenwort — a fern, Diplazium pycnocarpon, of eastern North America, having fronds from 20 to 30 inches (50.8 to 76.2 cm) long on yellowish-green stalks.
  • six-finger country — an isolated area considered as being inhabited by people who practise inbreeding
  • skinny-rib sweater — a tight-fitting ribbed woollen jumper or pullover
  • sling psychrometer — a psychrometer so designed that the wet-bulb thermometer can be ventilated, to expedite evaporation, by whirling in the air.
  • slow-motion replay — a showing again in slow motion of a sequence of action, esp of part of a sporting contest immediately after it happens
  • society of friends — a Christian denomination, founded in England c. 1650 by George Fox, that has no formal creed, liturgy, or priesthood and rejects violence in human relations, esp. warfare
  • sodium thiocyanate — a white powder or colorless, deliquescent crystals, NaSCN, used chiefly in organic synthesis and in medicine in the treatment of hypertension.
  • solitary sandpiper — a North American sandpiper, Tringa solitaria, of inland wetlands, having a brownish-gray, white-spotted back and whitish underparts.
  • speech synthesizer — device that imitates human voice
  • 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.
  • stationary bicycle — an exercise bike
  • 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
  • submaxillary gland — submandibular gland.
  • subsidiary company — a company whose controlling interest is owned by another company.
  • sulfuric anhydride — sulfur trioxide.
  • summary proceeding — a mode of trial authorized by statute to be held before a judge without the usual full hearing.
  • superstring theory — any supersymmetric string theory in which each type of elementary particle is treated as a vibration of a single fundamental string (superstring) at a particular frequency.
  • swedish gymnastics — a system of passive and active exercising of muscles and joints
  • symbolist movement — a movement beginning in French and Belgian poetry towards the end of the 19th century with the verse of Mallarmé, Valéry, Verlaine, Rimbaud, Maeterlinck, and others, and seeking to express states of mind rather than objective reality by making use of the power of words and images to suggest as well as denote
  • symmetric function — a polynomial in several indeterminates that stays the same under any permutation of the indeterminates.
  • 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.
  • synthetic division — a simplified procedure for dividing a polynomial by a linear polynomial.
  • synthetic geometry — elementary geometry, as distinct from analytic geometry.
  • 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).
  • 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.
  • tardive dyskinesia — a disorder characterized by restlessness and involuntary rolling of the tongue or twitching of the face, trunk, or limbs, usually occurring as a complication of long-term therapy with antipsychotic drugs.
  • television company — a company that broadcasts programmes by television
  • tertiary education — education, following secondary education at a school, at a college or university
  • the encyclopedists — the writers of the French Encyclopedia (1751-72) edited by Diderot and d'Alembert, which contained the advanced ideas of the period
  • the hotel industry — the branch of the services industry which provides hotels
  • the kinetic theory — a theory of gases postulating that they consist of particles of negligible size moving at random and undergoing elastic collisions
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