D defs.my
Entry 4 senses · 2 variants Webster, 1913

Adjuvant

/'ăj-ə-vənt/ · Ad·ju·vant · IPA /ˈæd͡ʒəv(ə)nt/
01 a. Helping; helpful; assisting.
  1. 1.
    Helping; helpful; assisting.[R.]
02 n. An assistant.
  1. 1.
    An assistant.[R.]
  2. 2.
    An ingredient in a prescription drug, which aids or modifies the action of the principal ingredient.(Med.)
  3. 3.
    A substance that non-specifically enhances immune response to an antigen, such as by enhancing the production of antibodies.(Med., Immunology)