# resiniferatoxin

> English word · Noun

## Definitions
1. A naturally occurring ultrapotent capsaicin analogue (having in its pure form a Scoville heat unit measure of 16,000,000,000) that activates the receptor TRPV1 (aka vanilloid receptor 1 or the capsaicin receptor) in a subpopulation of primary afferent sensory neurons involved in nociception.

## Etymology
From resinifera + toxin, in reference to the plant Euphorbia resinifera (resin spurge), from which it is extracted.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/resiniferatoxin