Rangifer tarandus vs Greenland caribou

Rangifer tarandus and Greenland caribou both are nouns.

Word	Noun	Adjective	Verb	Adverb
Rangifer tarandus	Yes	No	No	No
Greenland caribou	Yes	No	No	No

As nouns, Rangifer tarandus and Greenland caribou are synonyms defined as:

Rangifer tarandus and Greenland caribou: Arctic deer with large antlers in both sexes; called `reindeer' in Eurasia and `caribou' in North America

Other synonyms of Rangifer tarandus include caribou, reindeer.

Rangifer tarandus (noun)	Greenland caribou (noun)
Arctic deer with large antlers in both sexes; called `reindeer' in Eurasia and `caribou' in North America	Arctic deer with large antlers in both sexes; called `reindeer' in Eurasia and `caribou' in North America