I. noun Date: 1887 1. a. the act of knocking out ; the condition of being knocked out b. (1) the termination of a boxing match when one boxer has been knocked down and is unable to rise and resume boxing within a specified time (2) technical knockout c. a blow that knocks out an opponent 2. a sensationally striking, appealing, or attractive person or thing II. adjective Date: 1818 1. causing a knockout <
a knockout blow
2. sensationally striking, appealing, or attractive <
a knockout dress
3. having all or part of a gene eliminated or inactivated by genetic engineering <
knockout mice predisposed to diabetes mellitus

New Collegiate Dictionary. 2001.

Look at other dictionaries:

  • knockout — knock‧out [ˈnɒk aʊt ǁ ˈnɑːk ] noun [countable] an arrangement in which people who are trying to buy the same thing agree not to compete against each other on the price: • It appears to be doubtful whether a knockout was arranged. • a knockout… …   Financial and business terms

  • knockout — knock out , knock out knock out , n. Act of knocking out, or state of being knocked out; the act of rendering a person unconscious by a blow. [WordNet sense 1] [Webster 1913 Suppl. + WordNet 1.5] 2. a blow which causes a person to become… …   The Collaborative International Dictionary of English

  • knockout — [näk′out΄] adj. that knocks out: said of a blow, etc. n. 1. a knocking out or being knocked out 2. a) a blow that knocks out b) Boxing a victory won when the opponent is knocked out: cf. TECHNICAL KNOCKOUT ☆ 3. Slang a very attractive or striking …   English World dictionary

  • Knockout — Knockout. См. Выпрессовка. (Источник: «Металлы и сплавы. Справочник.» Под редакцией Ю.П. Солнцева; НПО Профессионал , НПО Мир и семья ; Санкт Петербург, 2003 г.) …   Словарь металлургических терминов

  • knockout — knockout→k.o …   Das Wörterbuch der Synonyme

  • knockout — Adj k. o …   Etymologisches Wörterbuch der deutschen sprache

  • knockout — (n.) also knock out, in fighting, 1887, from verbal phrase knock out to stun by a blow for a 10 count in boxing, short for to knock out of time; see KNOCK (Cf. knock) (v.) + OUT (Cf. out). Slang meaning attractive person is from 1892. To knock… …   Etymology dictionary

  • knockout — ► NOUN 1) an act of knocking someone out. 2) Brit. a tournament in which the loser in each round is eliminated. 3) informal an extremely attractive or impressive person or thing …   English terms dictionary

  • Knockout — KO and K.O. redirect here. For other uses, see Ko (disambiguation). For other uses of knockout , see Knockout (disambiguation). A knockout can be characterized by temporary unconsciousness. A knockout (also referred to as a K.O.) is a fight… …   Wikipedia

  • knockout — [[t]nɒ̱kaʊt[/t]] knockouts also knock out 1) N COUNT: also by N In boxing, a knockout is a situation in which a boxer wins the fight by making his opponent fall to the ground and be unable to stand up before the referee has counted to ten. 2) ADJ …   English dictionary

  • knockout — knock|out1 [ˈnɔk aut US ˈna:k ] n 1.) when a ↑boxer hits his opponent so hard that he falls down and cannot get up again ▪ The fight ended in a knockout. 2.) informal someone or something that is very attractive or successful ▪ Her dress was a… …   Dictionary of contemporary English

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