sea elephant

from The Century Dictionary.

• noun The seal Macrorhinus elephantinus or proboscideus, or Morunga proboscidea.

from the GNU version of the Collaborative International Dictionary of English.

• (Zoöl.) A very large seal (Macrorhinus proboscideus) of the Antarctic seas, much hunted for its oil. It sometimes attains a length of thirty feet, and is remarkable for the prolongation of the nose of the adult male into an erectile elastic proboscis, about a foot in length. Another species of smaller size (M. angustirostris) occurs on the coast of Lower California, but is now nearly extinct.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun The elephant seal

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun either of two large northern Atlantic earless seals having snouts like trunks