Alosa pseudoharengus vs alewife

Alosa pseudoharengus and alewife both are nouns.

Word	Noun	Adjective	Verb	Adverb
Alosa pseudoharengus	Yes	No	No	No
alewife	Yes	No	No	No

As nouns, Alosa pseudoharengus and alewife are synonyms defined as:

Alosa pseudoharengus and alewife: shad-like food fish that runs rivers to spawn; often salted or smoked; sometimes placed in genus Pomolobus

Other synonyms of Alosa pseudoharengus include Pomolobus pseudoharengus.

Alosa pseudoharengus (noun)	alewife (noun)
shad-like food fish that runs rivers to spawn; often salted or smoked; sometimes placed in genus Pomolobus	shad-like food fish that runs rivers to spawn; often salted or smoked; sometimes placed in genus Pomolobus
	flesh of shad-like fish abundant along the Atlantic coast or in coastal streams