"absorbing or capable of absorbing," 1718, from Latin absorbentem (nominative absorbens) "a drinking," present participle of absorbere "swallow up" (see absorb). Also from 1718 as a noun, "anything which absorbs."
as absorbent as a sponge
absolutist
absolve
absorb
absorbed
absorbency
absorbent
absorbing
absorption
absquatulate
abstain
abstainer