knockout

4 ENTRIES FOUND:

knock·out

noun \ˈnäk-ˌat\

Definition of KNOCKOUT

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

First Known Use of KNOCKOUT

1887

knockout

adjective

Definition of KNOCKOUT

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>

First Known Use of KNOCKOUT

1818

Related to KNOCKOUT

Synonyms
aesthetic (also esthetic or aesthetical or esthetical), attractive, beauteous, bonny (also bonnie) [chiefly British], comely, cute, drop-dead, fair, fetching, good, good-looking, goodly, gorgeous, handsome, beautiful, likely, lovely, lovesome, pretty, ravishing, seemly, sightly, stunning, taking, well-favored
Antonyms
grotesque, hideous, homely, ill-favored, plain, ugly, unaesthetic, unattractive, unbeautiful, uncomely, uncute, unhandsome, unlovely, unpleasing, unpretty, unsightly

knock·out

adjective \ˈnäk-ˌat\   (Medical Dictionary)

Medical Definition of KNOCKOUT

: 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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