Cercopithecus aethiops vs grivet

Cercopithecus aethiops and grivet both are nouns.

Word	Noun	Adjective	Verb	Adverb
Cercopithecus aethiops	Yes	No	No	No
grivet	Yes	No	No	No

As nouns, Cercopithecus aethiops and grivet are synonyms defined as:

Cercopithecus aethiops and grivet: white and olive green East African monkey with long white tufts of hair beside the face

Cercopithecus aethiops (noun)	grivet (noun)
white and olive green East African monkey with long white tufts of hair beside the face	white and olive green East African monkey with long white tufts of hair beside the face