BICEPHALOUS Meaning of BICEPHALOUS in English [ bʌɪ'sɛf(ə)ləs , -'kɛf- ]■ adjective having two heads.OriginC19: from bi- + Gk kephalē 'head' + -ous . Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004