raptorial Syllabification: (rap·to·ri·al)Pronunciation: /rapˈtôrēəl/Definition of raptorial adjective chiefly Zoology (of a bird or other animal) predatory. (of a limb or other organ) adapted for seizing prey. Derivatives raptorially adverb Origin: early 19th century: from Latin raptor 'plunderer' + -ialraptorial in other Oxford dictionaries Definition of raptorial in the British & World English dictionary