Clue: A fibrous protein

Answer: KERATIN

Length: 7

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Similar Clues:

• Protein-building acid (AMINO with 5 letters)
• Protein acid (e.g. AMINO with 5 letters)
• Acid in protein (AMINO with 5 letters)
• ___ acid (protein component) (AMINO with 5 letters)
• Kind of acid in protein (AMINO with 5 letters)
• __ acid (protein component) (AMINO with 5 letters)
• Protein acid, for short (AMINO with 5 letters)
• Kind of protein-building acid (AMINO with 5 letters)
• Kind of acid found in protein (AMINO with 5 letters)
• Sort of acid in protein (AMINO with 5 letters)