CLYPEUS Meaning of CLYPEUS in English [ 'klɪpɪəs ]■ noun ( plural clypei -pɪʌɪ ) Entomology a broad plate at the front of an insect's head.Derivativesclypeal adjective OriginC19: from L., lit. 'round shield'. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004