Words: ion-exchange polymer ion-exchange resin
Part of speech: n
Definition: An ion-exchange resin or ion-exchange polymer is an insoluble matrix (or support structure) normally in the form of small (0.5-1 mm diameter) beads, usually white or yellowish, fabricated from an organic polymer substrate.
Example: Sodium polystyrene sulfonate is a strongly acidic ion-exchange resin and is used to treat hyperkalemia.