dry mustard vs vomitive

dry mustard and vomitive both are nouns.

Word	Noun	Adjective	Verb	Adverb
dry mustard	Yes	No	No	No
vomitive	Yes	No	No	No

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

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

Other hypernyms of dry mustard include emetic, nauseant, vomit, mustard, table mustard.

dry mustard (noun)	vomitive (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