vomit vs ipecac

vomit and ipecac both are nouns.

Word	Noun	Adjective	Verb	Adverb
vomit	Yes	No	Yes	No
ipecac	Yes	No	No	No

As nouns, ipecac is a hyponym of vomit; that is, ipecac is a word with a more specific, narrower meaning than vomit:

vomit: a medicine that induces nausea and vomiting
ipecac: a medicinal drug used to evoke vomiting (especially in cases of drug overdose or poisoning)

Other hyponyms of vomit include dry mustard, powdered mustard.

vomit (noun)	ipecac (noun)
the reflex act of ejecting the contents of the stomach through the mouth	a medicinal drug used to evoke vomiting (especially in cases of drug overdose or poisoning)
a medicine that induces nausea and vomiting
the matter ejected in vomiting

vomit (verb)	ipecac (verb)
eject the contents of the stomach through the mouth