immunostimulatory
/ˌɪmjʊnəʊˈstɪmjʊlət(ə)ri/ /ɪˌmjuːnəʊˈstɪmjʊlət(ə)ri/Medicine
adjective
Stimulating the function of the immune system or the production of an immune response.
Origin
1960s; earliest use found in Proceedings of the National Academy of Sciences of the United States of America. From immuno- + stimulatory, after immunostimulation.