CHAETA Meaning of CHAETA in English [ 'ki:tə ]■ noun ( plural ~e -ti: ) Zoology a stiff bristle made of chitin, especially in an annelid worm.OriginC19: mod. L., from Gk khaitē 'long hair'. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004