触角 (觸角) chùjiǎo

chùjiǎo noun an insect antenna
Domain: Modern Chinese 现代汉语 , Subdomain: Zoology
Notes: 触角 is an example of a disyllabic word composed of one character, 触, that is a bound morpheme and the other, 角, that is a free morpheme in modern Chinese (Sun 2006, loc. 641).