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Kepler
Kepler’s laws
kept
kept man
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Kerala
kerat-
keratectomy
keratin
keratinisation
keratinise
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keratoacanthoma
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keratin

ker·a·tin [ kérrətin ]


noun 
Definition:
 
fibrous protein: a fibrous insoluble protein that is the main structural element in hair, nails, feathers, and hooves

[Mid-19th century. < Greek kerat- "horn"]

ke·rat·i·nous [ ke rátt'nəss ] adjective
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