Chitin (noun) Definition, Meaning & Examples

noun Biochemistry.
  1. a 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.
noun
  1. a polysaccharide that is the principal component of the exoskeletons of arthropods and of the bodies of fungi
    Chitin (noun) Definition, Meaning & Examples

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