petrolatum gauze vs gauze

petrolatum gauze and gauze both are nouns.

Word	Noun	Adjective	Verb	Adverb
petrolatum gauze	Yes	No	No	No
gauze	Yes	No	No	No

As nouns, gauze is a hypernym of petrolatum gauze; that is, gauze is a word with a broader meaning than petrolatum gauze:

petrolatum gauze: gauze saturated with petrolatum
gauze: (medicine) bleached cotton cloth of plain weave used for bandages and dressings

Other hypernyms of petrolatum gauze include gauze bandage.

petrolatum gauze (noun)	gauze (noun)
gauze saturated with petrolatum	a net of transparent fabric with a loose open weave
	(medicine) bleached cotton cloth of plain weave used for bandages and dressings