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Keratin
(n)UK
ˈkerətɪn
US
ˈkerətɪn
Definition: A fibrous protein forming the main structural constituent of hair, feathers, hoofs, claws, horns, etc.
Meaning: Lớp sừng cấu tạo nên móng tay và tóc
Not Common
How to use "Keratin" vocabulary in sentence (example)
An eagle's beak contains keratin, which means that it grows all the time just like human hair and fingernails.
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