Definition of polypharmaceutical in US English:

polypharmaceutical

adjective

Medicine
depreciative
  • Of a medicinal preparation: containing several drugs.

noun

Medicine
depreciative
  • A medicinal preparation containing several drugs.

Origin

Mid 19th century; earliest use found in De Bow's Review. From poly- + pharmaceutical, after polypharmacy.

Pronunciation

polypharmaceutical

/ˌpɒlɪfɑːməˈs(j)uːtɪkl/