NARWHAL

[nar.whal] also nar.whale n [Norw & Dan narhval & Sw narval, prob. modif. of Icel narhvalur, fr. ON nahvalr, fr. nar corpse + hvalr whale; fr. its color] (1646): an arctic cetacean (Monodon monoceros) about 20 feet (6 meters) long with the male having a long twisted ivory tusk