pronghorn antelope vs Antilocapra americana

pronghorn antelope and Antilocapra americana both are nouns.

Word	Noun	Adjective	Verb	Adverb
pronghorn antelope	Yes	No	No	No
Antilocapra americana	Yes	No	No	No

As nouns, pronghorn antelope and Antilocapra americana are synonyms defined as:

pronghorn antelope and Antilocapra americana: fleet antelope-like ruminant of western North American plains with small branched horns

Other synonyms of pronghorn antelope include American antelope, prongbuck, pronghorn.

pronghorn antelope (noun)	Antilocapra americana (noun)
fleet antelope-like ruminant of western North American plains with small branched horns	fleet antelope-like ruminant of western North American plains with small branched horns