adjuvant adjuvant /ˈædʒʊvənt/

adjective

1. (pharmacology) enhancing the action of a medical treatment  ( adjuvant )
   (pharmacology) enhancing the action of a medical treatment
    The adjuvant action of certain bacteria
   the adjuvant action of certain bacteria
   
2. Furnishing added support  ( accessory , adjunct , adjuvant , ancillary , appurtenant , auxiliary )
   furnishing added support
    An ancillary pump
   an ancillary pump
    An adjuvant discipline to forms of mysticism
   an adjuvant discipline to forms of mysticism
    The mind and emotions are auxiliary to each other
   The mind and emotions are auxiliary to each other
   

noun

1. An additive that enhances the effectiveness of medical treatment  ( adjuvant )
   an additive that enhances the effectiveness of medical treatment
    The vaccine included an adjuvant to enhance its efficacy against the virus.
   The vaccine included an adjuvant to enhance its efficacy against the virus.