choler vs yellow bile

choler and yellow bile both are nouns.

Word	Noun	Adjective	Verb	Adverb
choler	Yes	No	No	No
yellow bile	Yes	No	No	No

As nouns, choler and yellow bile are synonyms defined as:

choler and yellow bile: a humor that was once believed to be secreted by the liver and to cause irritability and anger

choler (noun)	yellow bile (noun)
a humor that was once believed to be secreted by the liver and to cause irritability and anger	a humor that was once believed to be secreted by the liver and to cause irritability and anger
a strong emotion; a feeling that is oriented toward some real or supposed grievance
an irritable petulant feeling