[chi.tin] n [F chitine, fr. Gk chiton] (ca. 1839): a horny polysaccharide that forms part of the hard outer integument esp. of insects, arachnids, and crustaceans -- chi.tin.ous adj
CHITIN
Meaning of CHITIN in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012