obsolete catabolism by symbiont of host macromolecule https://github.com/geneontology/go-ontology/issues/21469 true GO:0052013 catabolism by organism of host macromolecule This term was obsoleted because it represents a molecular function. biological_process OBSOLETE. The chemical reactions and pathways performed by an organism resulting in the breakdown of macromolecules within the host organism. The host is defined as the larger of the organisms involved in a symbiotic interaction.