Entry 1 sense Webster, 1913 Raptorial /(răp*tō"rĭ*al)/ · Rap·to·ri·al · IPA /rˌæptˈɔriːəl/ 01 a. Rapacious; living upon prey; -- said especially of certain birds. 1. Rapacious; living upon prey; -- said especially of certain birds.(Zool.)