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knockout

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noun knock·out \ˈnäk-ˌau̇t\

Definition of knockout

  1. 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. 2 :  a sensationally striking, appealing, or attractive person or thing



1887

First Known Use of knockout

1887


knockout

adjective knock·out

Definition of knockout

  1. 1 :  causing a knockout <a knockout blow>

  2. 2 :  sensationally striking, appealing, or attractive <a knockout dress>

  3. 3 :  having all or part of a gene eliminated or inactivated by genetic engineering <knockout mice predisposed to diabetes mellitus>



1818

First Known Use of knockout

1818


Medical Dictionary

knockout

play
adjective knock·out \ˈnäk-ˌau̇t\

Medical Definition of knockout

  1. :  having all or part of a gene eliminated or inactivated by genetic engineering <knockout mice predisposed to diabetes mellitus serve as animal models in the study of human diabetes>





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