资料来源 : pyDict

一角鲸[海豚之类]

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Narwal \Nar"wal\, n. (Zo["o]l.)
   See {Narwhal}.

资料来源 : WordNet®

narwal
     n : small arctic whale the male having a long spiral ivory tusk
         [syn: {narwhal}, {narwhale}, {Monodon monoceros}]