Meaning of the word keratin in English

What does keratin mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

keratin

US /ˈker.ə.tɪn/
UK /ˈker.ə.tɪn/

Noun

a fibrous protein forming the main structural constituent of hair, feathers, hoofs, claws, horns, etc.

Example:
Hair is primarily composed of keratin.
Many nail and hair products contain added keratin to strengthen them.
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