bul: кератин

Information
has URI	http://lexvo.org/id/term/bul/%D0%BA%D0%B5%D1%80%D0%B0%D1%82%D0%B8%D0%BD

Meaning
means	(noun) a fibrous scleroprotein that occurs in the outer layer of the skin and in horny tissues such as hair, feathers, nails, and hooves keratin, ceratin