Entry 1 sense Webster, 1913 Elucidative /ĭl-o͞os'-əd-ātˌ-ĭv/ · E·lu·ci·da·tive · IPA /ɪlˈuːsədˌeɪtɪv/ 01 a. Making clear; tending to elucidate; as, an elucidative note. 1. Making clear; tending to elucidate; as, an elucidative note.