1. That which is capable of attracting and absorbing substances into itself: "Randy brought a new sponge which is the best absorbent he has ever used."
2. A product or substance which can absorb liquids or gases: "The new powder-like substance is a great absorbent when cleaning up the oils and grease at the mechanic's garage."
2. Any substance that takes in fluids through its sensible or insensible porosity; applied in a special sense in medicine to such substances as chalk or magnesia that take in the acidity of the stomach: "Certain forms of magnesium can work as an absorbent when administered as a laxative."

Cotton from which the natural wax has been removed that is used in surgical dressings and for other medicinal or cosmetic purposes: "The absorbent cotton is always sterilized before it arrives at the hospital and is used during surgery."

A sterile dressing of any material that is applied to a wound or incision to absorb secretions: "Kinds of absorbent dressings are Teflon-coated gauze squares, fluffed gauze, and abdominal bandages."

A fabric or pad with various forms, weights, and uses: "Absorbent gauzes may be rolled, single-layered fine fabrics for spiral bandages, or they may be thick, multilayered pads for sterile pressure dressings and there may also be adhesive backings."