Absorbent

• The substrate into which a substance is absorbed.
• An herb or substance that promotes absorption, soaks up liquid, or acts as a sponge.
• capable of absorbing
• having power or capacity or tendency to absorb or soak up something (liquids or energy etc.); "as absorbent as a sponge"
• absorbent material: a material having capacity or tendency to absorb another substance
• Anything which absorbs; Any substance which absorbs and neutralizes acid fluid in the stomach and bowels, as magnesia, chalk, etc.