absorbent
adjective
°absorbing liquids; swallowing; absorptive.
"Those paper towels were amazingly absorbent. That was quite a spill."
noun
°Anything which absorbs.
"The ocean, itself a bad absorbent of heat. — Charles Darwin"
°(medicine) Any substance which absorbs and neutralizes acid fluid in the stomach and bowels, as magnesia, chalk, etc.; also a substance, e.g., iodine, which acts on the absorbent vessels so as to reduce enlarged and indurated parts.