transitive verbpre·con·di·tioned, pre·con·di·tion·ing, pre·con·di·tions
- A requirement which must be satisfied before taking a course of action.
- A marriage licence is a precondition for a wedding.
(third-person singular simple present preconditions, present participle preconditioning, simple past and past participle preconditioned)
- (medicine, biology) To condition in advance
pre- +"Ž condition