Entry 1 sense Webster, 1913 Preëmptive · Pre·ëmp·tive · IPA /pɹiːˈɛmp.tɪv/ 01 a. Of or pertaining to preëmption; having power to preëmpt; preëmpting. 1. Of or pertaining to preëmption; having power to preëmpt; preëmpting.