Webster’s Revised Unabridged Dictionary · 1913
Chitin
Chi′tin (kī′tĭn), n. [See Chiton.] (Chem.) A white amorphous horny substance forming the harder part of the outer integument of insects, crustacea, and various other invertebrates; entomolin.
Webster’s Revised Unabridged Dictionary · 1913
Chi′tin (kī′tĭn), n. [See Chiton.] (Chem.) A white amorphous horny substance forming the harder part of the outer integument of insects, crustacea, and various other invertebrates; entomolin.