'absorbent' definitions:

Definition of 'absorbent'

(from WordNet)
adjective
Having power or capacity or tendency to absorb or soak up something (liquids or energy etc.); "as absorbent as a sponge" [syn: absorbent, absorptive] [ant: nonabsorbent, nonabsorptive]
noun
A material having capacity or tendency to absorb another substance [syn: absorbent material, absorbent]