(medicine) Designating a supplementary form of treatment; specifically, a cancer therapy administered after removal of a primary tumour. [from 19th c.]
Noun
Someone who helps or facilitates; an assistant, a helper. [from 16th c.]
(medicine) Something that enhances the effectiveness of a medical treatment; a supplementary treatment. [from 18th c.]
(pharmacology) An additive (as in a drug) that aids or modifies the action of the principal ingredient. [from 19th c.]
(pesticide science) An additive (often a separate product) that enhances the efficacy of pesticide products, but has little or no pesticidal activity itself. [from mid 20th c.]
(immunology) A substance enhancing the immune response to an antigen. [from 20th c.]
