[pri-ven-shuh n]


the act of preventing; effectual hindrance.
a preventive: This serum is a prevention against disease.

Origin of prevention

1520–30; < Late Latin praeventiōn- (stem of praeventiō) a forestalling. See prevent, -ion
Related formsnon·pre·ven·tion, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for prevention



the act of preventing
a hindrance, obstacle, or impediment
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

Word Origin and History for prevention

mid-15c., "action of stopping an event or practice," from Middle French prévention and directly from Late Latin praeventionem (nominative praeventio) "action of anticipating," noun of action from past participle stem of praevenire (see prevent).

Online Etymology Dictionary, © 2010 Douglas Harper