[ pree-kuh n-dish-uh n ]
/ ˌpri kənˈdɪʃ ən /


something that must come before or is necessary to a subsequent result; condition: a precondition for a promotion.

verb (used with object)

to subject (a person or thing) to a special treatment in preparation for a subsequent experience, process, test, etc.: to precondition a surface to receive paint.

Origin of precondition

First recorded in 1910–15; pre- + condition Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Examples from the Web for precondition

British Dictionary definitions for precondition

/ (ˌpriːkənˈdɪʃən) /


a necessary or required condition; prerequisite


(tr) psychol to present successively two stimuli to (an organism) without reinforcement so that they become associated; if a response is then conditioned to the second stimulus on its own, the same response will be evoked by the first stimulus
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