seal 2 
(sēl)
(sēl)n.
1. Any of various aquatic carnivorous mammals of the families Phocidae and Otariidae, found chiefly in cold regions and having a sleek torpedo-shaped body and limbs that are modified into paddlelike flippers.
2. The pelt or fur of one of these animals, especially a fur seal.
3. Leather made from the hide of one of these animals.
intr.v. sealed, seal·ing, seals
To hunt seals.
[Middle English sele, from Old English seolh.]