Source : Webster's Revised Unabridged Dictionary (1913)

Sea otter \Sea" ot"ter\ (Zo["o]l.)
   An aquatic carnivore ({Enhydris lutris, or marina}) found in
   the North Pacific Ocean. Its fur is highly valued, especially
   by the Chinese. It is allied to the common otter, but is
   larger, with feet more decidedly webbed.

   {Sea-otter's cabbage} (Bot.), a gigantic kelp of the Pacific
      Ocean ({Nereocystis Lutkeana}). See {Nereocystis}.