tolu vs balsam of Peru

tolu and balsam of Peru both are nouns.

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

As nouns, balsam of Peru is a hyponym of tolu; that is, balsam of Peru is a word with a more specific, narrower meaning than tolu:

tolu: aromatic yellowish brown balsam from the tolu balsam tree used especially in cough syrups
balsam of Peru: dark brown syrupy balsam from the Peruvian balsam tree used especially in dressing wounds and treating certain skin diseases

tolu (noun)	balsam of Peru (noun)
aromatic yellowish brown balsam from the tolu balsam tree used especially in cough syrups	dark brown syrupy balsam from the Peruvian balsam tree used especially in dressing wounds and treating certain skin diseases