'Papaverine' definitions:

Definition of 'papaverine'

From: WordNet
noun
An alkaloid medicine (trade name Kavrin) obtained from opium; used to relax smooth muscles; it is nonaddictive [syn: papaverine, Kavrin]

Definition of 'Papaverine'

From: GCIDE
  • Papaverine \Pa*pav"er*ine\, n. (Chem.) An alkaloid found in opium. It has a weaker therapeutic action than morphine. [1913 Webster]