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A nitrogen-containing polysaccharide that is a tough, protective, semitransparent substance and is the principal component of arthropod exoskeletons and the cell walls of certain fungi.
[French chitine : New Latin chitōn, mollusk (from Greek khitōn, chiton; see chiton) + -ine.]
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|Adj.||1.||chitinous - of or resembling chitin|