Meaning of adjuvant

ad•ju•vant

1. serving to help or assist; auxiliary.
2. utilizing drugs, radiation therapy, or other means of supplemental treatment following cancer surgery.

1. a person or thing that aids or helps.
2. anything that aids in removing or preventing a disease, esp. a substance added to a prescription to aid the effect of the main ingredient.
3. a substance admixed with an immunogen in order to elicit a more marked immune response.