CHITINS
- CHITIN, the main component of insect shells [n]
- a horny polysaccharide (C8H13NO5)n that forms part of the hard outer integument especially of insects, arachnids, and crustaceans
- nitrogen-containing polysaccharide, related chemically to cellulose, that forms a semitransparent horny substance and is a principal constituent of the exoskeleton, or outer covering, of insects, crustaceans, and arachnids