wapiti vs Cervus elaphus canadensis

wapiti and Cervus elaphus canadensis both are nouns.

Word	Noun	Adjective	Verb	Adverb
wapiti	Yes	No	No	No
Cervus elaphus canadensis	Yes	No	No	No

As nouns, wapiti and Cervus elaphus canadensis are synonyms defined as:

wapiti and Cervus elaphus canadensis: large North American deer with large much-branched antlers in the male

Other synonyms of wapiti include American elk, elk.

wapiti (noun)	Cervus elaphus canadensis (noun)
large North American deer with large much-branched antlers in the male	large North American deer with large much-branched antlers in the male
common deer of temperate Europe and Asia