NCIt definition : A substance used to absorb fluid-like substances on their surface and to increase
the dissolution rates of relatively water-insoluble drugs in order to make them easier
to incorporate into solid dosage forms.;
Alternative definition : PQCMC: Agent used to bind another component from within a formulation, acting as a
carrier, reservoir or sequestrant (e.g. water-absorbing agent). (Adapted from Medicinescomplete);