PREDACIOUS Meaning of PREDACIOUS in English [ prɪ'deɪʃəs ](also predaceous ) ■ adjective (of an animal) predatory.Derivatives~ness nounpredacity noun OriginC18: from L. praeda 'booty' + -acious . Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004