Crossword clues for ceratin
WordNet
ceratin
n. a fibrous scleroprotein that occurs in the outer layer of the skin and in horny tissues such as hair feathers nails and hooves [syn: keratin]
Usage examples of "ceratin".
It is almost ceratin that in this minute organism, invisible to the naked eye, we have the causative agent of one of the great destroyers of the human race.