aspirin powder vs powder

aspirin powder and powder both are nouns.

Word	Noun	Adjective	Verb	Adverb
aspirin powder	Yes	No	No	No
powder	Yes	No	Yes	No

As nouns, powder is a hypernym of aspirin powder; that is, powder is a word with a broader meaning than aspirin powder:

aspirin powder: a powdered form of aspirin
powder: any of various cosmetic or medical preparations dispensed in the form of a pulverized powder

Other hypernyms of aspirin powder include acetylsalicylic acid, aspirin, Bayer, Empirin, St. Joseph.

aspirin powder (noun)	powder (noun)
a powdered form of aspirin	any of various cosmetic or medical preparations dispensed in the form of a pulverized powder
	a solid substance in the form of tiny loose particles; a solid that has been pulverized
	a mixture of potassium nitrate, charcoal, and sulfur in a 75:15:10 ratio which is used in gunnery, time fuses, and fireworks

aspirin powder (verb)	powder (verb)
	apply powder to
	make into a powder by breaking up or cause to become dust