hydrogel

Gel in which the swelling agent is water.
Notes:
  1. The network component of a hydrogel is usually a polymer network.
  2. A hydrogel in which the network component is a colloidal network may be referred to as an aquagel.
Source:
PAC, 2007, 79, 1801 (Definitions of terms relating to the structure and processing of sols, gels, networks, and inorganic-organic hybrid materials (IUPAC Recommendations 2007)) on page 1807