choler vs body fluid

choler and body fluid both are nouns.

Word	Noun	Adjective	Verb	Adverb
choler	Yes	No	No	No
body fluid	Yes	No	No	No

As nouns, body fluid is a hypernym of choler; that is, body fluid is a word with a broader meaning than choler:

choler: a humor that was once believed to be secreted by the liver and to cause irritability and anger
body fluid: the liquid parts of the body

Other hypernyms of choler include bodily fluid, humor, humour, liquid body substance.

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