Breadcrumb Home > Thesaurus > K Synonyms of keratin Find synonyms for: Noun 1. keratin, ceratin, scleroprotein, albuminoid usage: a fibrous scleroprotein that occurs in the outer layer of the skin and in horny tissues such as hair, feathers, nails, and hooves WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of keratin (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. The Book of 1 Corinthians: Summary Current Events This Week: June 2023 Languages Spoken in Each Country of the World Aesop's Fables: Aesop's Fables Milestones in Environmental Protection The 12 Labors of Hercules (In Order) ✖ Related Content Daily Word Quiz: soupon Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language