sorbent vs adsorbent

sorbent and adsorbent both are nouns.

Word	Noun	Adjective	Verb	Adverb
sorbent	Yes	No	No	No
adsorbent	Yes	Yes	No	No

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

sorbent: a material that sorbs another substance; i.e. that has the capacity or tendency to take it up by either absorption or adsorption
adsorbent: a material having capacity or tendency to adsorb another substance

Other hyponyms of sorbent include absorbent, absorbent material, adsorbent material.

sorbent (noun)	adsorbent (noun)
a material that sorbs another substance; i.e. that has the capacity or tendency to take it up by either absorption or adsorption	a material having capacity or tendency to adsorb another substance

sorbent (adjective)	adsorbent (adjective)
	having capacity or tendency to adsorb or cause to accumulate on a surface