narwhal

noun

1. small Arctic whale the male having a long spiral ivory tusk
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2. An arctic cetacean (Monodon monocerous), about twenty feet long. The male usually has one long, twisted, pointed canine tooth, or tusk projecting forward from the upper jaw like a horn, whence it is called also sea unicorn, unicorn fish, and unicorn whale. Sometimes two horns are developed, side by side.
   Terjemahkan ke Indonesia sumber: webster1913