powdered mustard vs emetic

powdered mustard and emetic both are nouns.

Word	Noun	Adjective	Verb	Adverb
powdered mustard	Yes	No	No	No
emetic	Yes	No	No	No

As nouns, emetic is a hypernym of powdered mustard; that is, emetic is a word with a broader meaning than powdered mustard:

powdered mustard: a substance such that one to three tablespoons dissolved in a glass of warm water is a homemade emetic
emetic: a medicine that induces nausea and vomiting

Other hypernyms of powdered mustard include nauseant, vomit, vomitive, mustard, table mustard.

powdered mustard (noun)	emetic (noun)
a substance such that one to three tablespoons dissolved in a glass of warm water is a homemade emetic	a medicine that induces nausea and vomiting