A black resinoid extract prepared by the South American Indians from the bark of several species of Strychnos (S. toxifera, etc.). It sometimes has little effect when taken internally, but is quickly fatal when introduced into the blood, and used by the Indians as an arrow poison.
- A dark resinous extract obtained from several tropical American woody plants, especially Chondrodendron tomentosum or certain species of Strychnos, used as an arrow poison by some Indian peoples of South America.
- A purified preparation or alkaloid obtained from Chondrodendron tomentosum, used in medicine and surgery to relax skeletal muscles.
- A plant yielding curare.