xerogel

https://dx.doi.org/10.1351/goldbook.X06700
Open network formed by the removal of all swelling agents from a gel.
Notes:
  1. Examples of xerogels include silica gel and dried out, compact, macromolecular structures, such as gelatin or rubber.
  2. The definition proposed here is recommended as being more explicit.
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 1808