[1] : The Collaborative International Dictionary of English v.0.48

sea otter \sea" ot"ter\ zool.
   an aquatic carnivore enhydris lutris syn. enhydris
   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.
   1913 webster

   sea-otter's cabbage bot., a gigantic kelp of the pacific
      ocean nereocystis lutkeana. see nereocystis.
      1913 webster
see also:
enhydris lutris enhydris marina sea-otter's cabbage nereocystis lutkeana nereocystis 

[2] : The Collaborative International Dictionary of English v.0.48

otter \ot"ter\ o^t"t~er, n. oe. oter, as. otor; akin to
   d.  g. otter, icel. otr, dan. odder, sw. utter, lith. udra,
   russ, vuidra, gr. "y`dra water serpent, hydra, skr. udra
   otter, and also to e. water. root137, 215. see water, and
   cf. hydra.
   1913 webster
   1. zool. any carnivorous animal of the genera lutra,
      enhydra, and related genera of the family mustelidae.
      several species are described. they have large, flattish
      heads, short ears, and webbed toes. they are aquatic, and
      feed on fish. the sea otter enhydra lutris also eats
      clams, crabs, starfish, abalone, and other marine animals;
      they may come to the surface, and lying on their backs
      using the stomach as a table, may be seen cracking open
      the shell of its prey with a rock. the common otter of
      europe is lutra vulgaris; the north american otter or
      american otter is lutra canadensis, which inhabits
      marshes, streams and rivers; other species inhabit south
      america and asia. the north american otter adult is about
      three to four feet long including the tail and weighs
      from 10 to 30 pounds; the sea otter is commonly four feet
      long and 45 pounds female or 60 pounds male. their fur
      is soft and valuable, and in the nineteenth century they
      were hunted extensively. the sea otter was hunted to near
      extinction by 1900, and is now protected. fewer than 3,000
      sea otters are believed to live along the central
      california coast.
      1913 webster +pjc

   2. zool. the larva of the ghost moth. it is very injurious
      to hop vines.
      1913 webster

   otter hound, otter dog zool., a small breed of hounds,
      used in england for hunting otters; see otterhound .

   otter sheep. see ancon sheep, under ancon.

   otter shell zool., very large bivalve mollusk
      schizothaerus nuttallii found on the northwest coast
      of america. it is excellent food, and is extensively used
      by the indians.

   sea otter. zool. see in the vocabulary.
      1913 webster
see also:
water hydra lutra enhydra mustelidae enhydra lutris 
lutra vulgaris north american otter lutra canadensis otter hound otter dog 
otterhound otter sheep ancon sheep ancon otter shell 
schizothaerus nuttallii sea otter 

[3] : WordNet (r) 2.0

sea otter
     n : large marine otter of northern pacific coasts having very
         thick dark brown fur syn: enhydra lutris
see also:
enhydra lutris 

Caspian Sea >> C Words
Caspian Sea, definition of term: Caspian Sea
caspian+sea_pag1.html

Coral Sea >> C Words
Coral Sea, definition of term: Coral Sea
coral+sea_pag1.html

Dead Sea >> D Words
Dead Sea, definition of term: Dead Sea
dead+sea_pag1.html

Caribbean Sea >> C Words
Caribbean Sea, definition of term: Caribbean Sea
caribbean+sea_pag1.html

Black Sea >> B Words
Black Sea, definition of term: Black Sea
black+sea_pag1.html

Aegean Sea >> A Words
Aegean Sea, definition of term: Aegean Sea
aegean+sea_pag1.html

Adriatic Sea >> A Words
Adriatic Sea, definition of term: Adriatic Sea
adriatic+sea_pag1.html

At Sea >> A Words
At Sea, definition of term: At Sea
at+sea_pag1.html

Baltic Sea >> B Words
Baltic Sea, definition of term: Baltic Sea
baltic+sea_pag1.html

Dead Sea Scroll >> D Words
Dead Sea Scroll, definition of term: Dead Sea Scroll
dead+sea+scroll_pag1.html