| baleen | <zoology> Plates or blades of "whalebone," from two to twelve feet long, and sometimes a foot wide, which in certain whales (Balaenoidea) are attached side by side along the upper jaw, and form a fringelike sieve by which the food is retained in the mouth. Origin: F. Baleine whale and whalibone, L. Balaena a whale; cf. Gr. Source: Websters Dictionary (01 Mar 1998) |
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| baleen | a horny material from the upper jaws of certain whales |
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| baleen | whale with plates of whalebone along the upper jaw for filtering plankton from the water |
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