narwhal
/ˈnɑːhwəl/noun
1- a small Arctic whale, the male of which has a long forward-pointing spirally twisted tusk developed from one of its teeth独角鲸。
1.1
- Monodon monoceros, family Monodontidae.拉丁名Monodon monoceros,独角鲸科。
词源
mid 17th cent.: from Dutch narwal, Danish narhval, based on Old Norse nár 'corpse', with reference to skin colour.