Any process that activates or increases the frequency, rate or extent of opsonization. [ GOC:rl GOC:TermGenie http://www.ncbi.nlm.nih.gov/pubmed/22333221 GOC:BHF http://purl.obolibrary.org/obo/go/references/0000058 ]
Synonyms: up regulation of opsonization up-regulation of opsonization upregulation of opsonization