18-letter words containing a, c, e, t, l, s
- genetic algorithms — genetic algorithm
- geometrical optics — the branch of optics dealing with light as rays, especially in the study of the effects of lenses and mirrors on light beams and of their combination in optical instruments.
- gestalt psychology — (sometimes lowercase) the theory or doctrine that physiological or psychological phenomena do not occur through the summation of individual elements, as reflexes or sensations, but through gestalts functioning separately or interrelatedly.
- goods and chattels — personal property
- goya (y lucientes) — Fran‧ˈcis‧co Jo‧ˈsé‧ de (fʀɑnˈθiskɔhɔˈsɛ ðɛ) ; fränt hēsˈk^ōh^ōseˈ the) 1746-1828; Sp. painter
- grandfather clause — U.S. History. a clause in the constitutions of some Southern states after 1890 intended to permit whites to vote while disfranchising blacks: it exempted from new literacy and property qualifications for voting those men entitled to vote before 1867 and their lineal descendants.
- granulated surface — a roughened surface
- gulf saint vincent — a shallow inlet of SE South Australia, to the east of the Yorke Peninsula: salt industry
- handlebar mustache — A handlebar mustache is a long thick mustache with curled ends.
- helicopter station — a place where helicopters are kept in readiness for use
- historical geology — the branch of geology dealing with the history of the earth.
- historical present — the present tense used in narrating a past event as if happening at the time of narration.
- hypercholesteremia — Alternative spelling of hypercholesteraemia.
- hypernationalistic — a person devoted to nationalism.
- hysterical reasons — (Or "hysterical raisins") A variant on the stock phrase "for historical reasons", indicating specifically that something must be done in some stupid way for backward compatibility, and moreover that the feature it must be compatible with was the result of a bad design in the first place. "All IBM PC video adaptors have to support MDA text mode for hysterical reasons." Compare bug-for-bug compatible.
- imploded consonant — a consonant which is pronounced with or by implosion
- in terrorem clause — a clause in a will stating that a beneficiary who contests the will shall lose his or her legacy.
- in the first place — firstly
- incidental charges — Incidental charges are costs of items and services that are not part of the main bill.
- incidental damages — law: incurred by contract breach
- incommensurability — not commensurable; having no common basis, measure, or standard of comparison.
- inconsequentiality — of little or no importance; insignificant; trivial.
- independent clause — a clause that can stand alone as a sentence, containing a subject and a predicate with a finite verb, as I was there in the sentence I was there when he arrived.
- industrial vehicle — a vehicle designed for use in industry
- intensional object — the object of a propositional attitude that may or may not exist, as in Robert is dreaming of the pot of gold at the end of the rainbow. This must be an intensional (or opaque) context, for otherwise, since there is no pot of gold, Robert would be dreaming of nothing
- intercartilaginous — (anatomy) Within cartilage.
- interface analysis — (testing) A software test which checks the interfaces between program elements for consistency and adherence to predefined rules or axioms.
- internal secretion — a secretion, esp a hormone, that is absorbed directly into the blood
- interstellar space — astronomy: space between the stars
- involuntary muscle — muscle: contracts involuntarily
- isoamyl salicylate — a colorless, sometimes slightly yellow, synthetic oil, C 12 H 16 O 3 , having an orchidlike odor: used in perfumery.
- isothermal process — a process that takes place without change in temperature.
- jack of all trades — a person who is adept at many different kinds of work.
- jack-of-all-trades — a person who is adept at many different kinds of work.
- kentucky bluegrass — a grass, Poa pratensis, of the Mississippi valley, used for pasturage and lawns.
- king of the castle — most powerful figure
- knotted cranesbill — a British wildflower, Geranium nodosum, an meadow geranium with bright pink or purple flowers
- lactose intolerant — cannot digest milk
- landscape painting — art: depicting natural scenery
- last chance saloon — a place frequented by unsavoury or contemptible people
- lateral resistance — resistance to sidewise motion caused by wind pressure, supplied by the immersed portion of a hull of a vessel.
- legislative branch — the branch of government having the power to make laws; the legislature.
- lenticular process — a method for producing images with a three-dimensional effect by photographing on lenticulated film.
- light displacement — the weight of a ship with all its permanent equipment, excluding the weight of cargo, persons, ballast, dunnage, and fuel, but usually including the weight of permanent ballast and water used to operate steam machinery.
- linear perspective — a mathematical system for representing three-dimensional objects and space on a two-dimensional surface by means of intersecting lines that are drawn vertically and horizontally and that radiate from one point (one-point perspective) two points (two-point perspective) or several points on a horizon line as perceived by a viewer imagined in an arbitrarily fixed position.
- liqueur chocolates — chocolates containing liqueur
- literary criticism — study and review of literature
- little spotted cat — a small New World tiger cat, Felis tigrinus, ranging from Costa Rica to northern Argentina.
- local examinations — (in the UK) any of various examinations, such as the GCE, set by university boards and conducted in local centres, schools, etc
- locally finite set — a collection of sets in a topological space in which each point of the space has a neighborhood that intersects a finite number of sets of the collection.