Plates of Bone That Hang in the Jaws of Whales
Puzzle 12 of Tattoo Shop Pack
Question is: Plates of Bone That Hang in the Jaws of Whales
and the answer is: BALEEN
Word Meaning:
BALEEN — (physiology, uncountable) keratinous material that makes up the plates in the mouth of the baleen whale (Mysticeti), which it uses to trap its food; formerly used in corsetry.
Definitions from Wiktionary.