curare vs alkaloid

curare and alkaloid both are nouns.

Word	Noun	Adjective	Verb	Adverb
curare	Yes	No	No	No
alkaloid	Yes	No	No	No

As nouns, alkaloid is a hypernym of curare; that is, alkaloid is a word with a broader meaning than curare:

curare: a toxic alkaloid found in certain tropical South American trees that is a powerful relaxant for striated muscles
alkaloid: natural bases containing nitrogen found in plants

Other hypernyms of curare include neuromuscular blocking agent, phytotoxin, plant toxin.

curare (noun)	alkaloid (noun)
a toxic alkaloid found in certain tropical South American trees that is a powerful relaxant for striated muscles	natural bases containing nitrogen found in plants