balsam of tolu vs balsam

balsam of tolu and balsam both are nouns.

Word	Noun	Adjective	Verb	Adverb
balsam of tolu	Yes	No	No	No
balsam	Yes	No	No	No

As nouns, balsam is a hypernym of balsam of tolu; that is, balsam is a word with a broader meaning than balsam of tolu:

balsam of tolu: aromatic yellowish brown balsam from the tolu balsam tree used especially in cough syrups
balsam: any of various fragrant oleoresins used in medicines and perfumes

balsam of tolu (noun)	balsam (noun)
aromatic yellowish brown balsam from the tolu balsam tree used especially in cough syrups	an ointment containing a fragrant resin
	any seed plant yielding balsam
	any of various fragrant oleoresins used in medicines and perfumes