Balaenoptera physalus vs finback

Balaenoptera physalus and finback both are nouns.

Word	Noun	Adjective	Verb	Adverb
Balaenoptera physalus	Yes	No	No	No
finback	Yes	No	No	No

As nouns, Balaenoptera physalus and finback are synonyms defined as:

Balaenoptera physalus and finback: large flat-headed whalebone whale having deep furrows along the throat; of Atlantic and Pacific

Other synonyms of Balaenoptera physalus include common rorqual, fin whale, finback whale.

Balaenoptera physalus (noun)	finback (noun)
large flat-headed whalebone whale having deep furrows along the throat; of Atlantic and Pacific	large flat-headed whalebone whale having deep furrows along the throat; of Atlantic and Pacific