Column packed with a single piece of solid material (monolith) composed of interconnected skeletons (forming macropores) and interconnected flow paths (mesopores) as a stationary phase material.
Source:
PAC, 2017, 90, 181. 'Terminology of separation methods (IUPAC Recommendations 2017)' on page 192 (https://doi.org/10.1515/pac-2017-0111)