Oncorhynchus tshawytscha vs king salmon

Oncorhynchus tshawytscha and king salmon both are nouns.

Word	Noun	Adjective	Verb	Adverb
Oncorhynchus tshawytscha	Yes	No	No	No
king salmon	Yes	No	No	No

As nouns, Oncorhynchus tshawytscha and king salmon are synonyms defined as:

Oncorhynchus tshawytscha and king salmon: large Pacific salmon valued as food; adults die after spawning

Other synonyms of Oncorhynchus tshawytscha include chinook, chinook salmon, quinnat salmon.

Oncorhynchus tshawytscha (noun)	king salmon (noun)
large Pacific salmon valued as food; adults die after spawning	large Pacific salmon valued as food; adults die after spawning
	pink or white flesh of large Pacific salmon