Monodon monoceros vs narwhale

Monodon monoceros and narwhale both are nouns.

Word	Noun	Adjective	Verb	Adverb
Monodon monoceros	Yes	No	No	No
narwhale	Yes	No	No	No

As nouns, Monodon monoceros and narwhale are synonyms defined as:

Monodon monoceros and narwhale: small Arctic whale the male having a long spiral ivory tusk

Other synonyms of Monodon monoceros include narwal, narwhal.

Monodon monoceros (noun)	narwhale (noun)
small Arctic whale the male having a long spiral ivory tusk	small Arctic whale the male having a long spiral ivory tusk