narwhal

/ˈnɑːwəl/

IPA: /N AA1 R W AH0 L/

noun
  1. 1

    Monodon monoceros, an Arctic cetacean that grows to about 20 feet (6 meters) long, the male having a single horn-like tusk, a twisted, pointed canine tooth that projects forward.

Synonyms

Source: https://en.wiktionary.org/wiki/narwhal