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[dis-in-fekt] /ˌdɪs ɪnˈfɛkt/
verb (used with object)
to cleanse (rooms, wounds, clothing, etc.) of infection; destroy disease germs in.
Origin of disinfect
1590-1600; < Middle French desinfecter, equivalent to des- dis-1 + infecter to infect
Related forms
disinfection, noun
disinfective, adjective
disinfector, noun
redisinfect, verb (used with object)
undisinfected, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for disinfection


(transitive) to rid of microorganisms potentially harmful to man, esp by chemical means
Derived Forms
disinfection, noun
disinfector, noun
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
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Word Origin and History for disinfection



1590s, perhaps from French désinfecter (16c.), or formed in English from dis- + infect. Related: Disinfected; disinfecting.

Online Etymology Dictionary, © 2010 Douglas Harper
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disinfection in Medicine

disinfect dis·in·fect (dĭs'ĭn-fěkt')
v. dis·in·fect·ed, dis·in·fect·ing, dis·in·fects
To cleanse something so as to destroy or prevent the growth of disease-carrying microorganisms.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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