PISCIVOROUS Meaning of PISCIVOROUS in English [ pɪ'sɪv(ə)rəs ]■ adjective Zoology feeding on fish.Derivativespiscivore noun OriginC17: from L. piscis 'fish' + -vorous . Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004