Curarine

Part of speech: noun

Definitions

1. A poisonous alkaloid derived from certain plants, historically used as a muscle relaxant in medicine and as a toxic agent in arrow poisons; it functions by blocking nerve impulses to muscles, causing paralysis
2. A natural toxin obtained from specific botanical sources, employed in traditional hunting for its paralyzing properties and utilized in medical practice to induce muscle relaxation during surgery
3. A plant-based chemical agent known for its ability to inhibit neuromuscular transmission, used both as a paralyzing poison in hunting cultures and as a pharmacological muscle relaxant in clinical settings

Etymology: Curarine is a chemical name built from curare, the arrow poison used by South American peoples, plus the suffix "-ine", which chemists attach to alkaloids (naturally occurring nitrogen-containing compounds) and other basic substances. The word is therefore a label for one of the active principles isolated from curare, not a term that existed in the original preparations. The poison itself has a more colourful history than its name suggests. Curare was prepared by Indigenous peoples of the Amazon basin, who used it on hunting arrows and darts, and the plant mixtures it came from were complex, so no single ingredient was responsible for the effect. Scientists who later separated and studied these compounds gave each one a name, and curarine is simply the general term for such a constituent.

Synonyms: muscle relaxant, neuromuscular blocker, curare