keratin
keratin definition
kera·tin (ker′ə tin)
noun
a tough, fibrous, insoluble protein forming the principal matter of hair, nails, horn, etc.
Etymology: kerat(o)- + -in
Related Forms:
- keratinous ke·rat′i·nous (kə rat′'n əs) adjective or keratinoid ke·rat′i·noid′ (-o̵id′)
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