the termination of a bout by the referee when it is the judgment of the attending physician, a boxer's seconds, or the referee that a boxer cannot continue fighting without sustaining severe or disabling injury. Abbreviation: TKO, T.K.O.
Origin of technical knockout
First recorded in 1945–50
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
boxing a judgment of a knockout given when a boxer is in the referee's opinion too badly beaten to continue without risk of serious injury
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012