— [noun] (8)

— stimulate or inhibit [verb (transitive)] (1)

— hormone (65)

— growth regulators or factor (7)

— metabolite (8)

— immunogen or antigen (30)

— agglutinin or agglutinogen (8)

— toxin (25)

— antibody (74)

— other immunological substances or particles (9)

— lysin or lysate (13)

— antitoxin (4)

— antibiotic (11)

— antiviral substance (4)

— other stimulators or inhibitors (36)