keratinous

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(ke-rat-i-nous) 4 syllables

Definition

adjective. made of keratin which is a protein.

Example Sentence

The bird's beak is keratinous.

More Example Sentences

Nails are keratinous and hard structures.

Synonyms

horny; tough; hard

Antonyms

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keratinous

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[kuh-RAT-in-us]

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