curari Definition

a complex poison of South American Indians used on arrow tips that causes muscle relaxation and paralysis, includes various substances of plant and animal origin, and typically contains an alkaloid extracted from one of two South American vines (Strychnos toxifera of the family Loganiaceae or Chondodendron tomentosum of the family Menispermaceae) as the primary active ingredient

an extract containing one of the primary alkaloid constituents (such as tubocurarine) of curare