Definition of multidrug in English:

multidrug

Pronunciation /ˈmʌltɪdrʌɡ/

adjective

Medicine
  • 1Involving or relating to the use of more than one drug, especially concurrently.

  • 2Designating resistance to the action of a number of drugs.

Origin

Early 20th century; earliest use found in Medical Council. From multi- + drug.