nar·whal also nar·wal (närwl) or nar·whale (-hwl, -wl)
n.
An Arctic whale (Monodon monoceros) that has a spotted pelt and is characterized in the male by a long spirally twisted ivory tusk projecting from the left side of its head.
[Norwegian or Danish narhval, from Old Norse nhvalr : nr, corpse (from its whitish color) + hvalr, whale.]
