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Word of the Day Tuesday, June 9, 2026

keratin

/kəˈrætɪn/ noun · British & US
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What does keratin mean?

noun

A type of protein found in skin, hair, and nails, composed of amino acids. It is a key component of the structure and strength of these tissues.

Example

"The keratin in her hair made it resistant to breakage and frizz."

Definition generated by AI and curated by RJS Tech Solutions LLP.

Synonyms for keratin

Rhymes with keratin

Etymologically related