Any of a wide variety of specific or non-specific substances which on inoculation enhances or augments an immune response. ... (05 Mar 2000) ... 
Type: Term Pronunciation: im′yū-nō-pō-ten′shē-ā-tŏr Definitions: 1. Any of a wide variety of specific or nonspecific substances that on inoculation enhances or augments an immune response.