extractant vs resolvent

extractant and resolvent both are nouns.

Word	Noun	Adjective	Verb	Adverb
extractant	Yes	No	No	No
resolvent	Yes	No	No	No

As nouns, resolvent is a hypernym of extractant; that is, resolvent is a word with a broader meaning than extractant:

extractant: an immiscible liquid used to extract a substance from another liquid.
resolvent: a liquid substance capable of dissolving other substances

Other hypernyms of extractant include dissolvent, dissolver, dissolving agent, solvent.

extractant (noun)	resolvent (noun)
an immiscible liquid used to extract a substance from another liquid.	a liquid substance capable of dissolving other substances