# endotoxin

> English word · Noun · frequency rank #95,938

## Definitions
1. Any toxin secreted by a microorganism and released into the surrounding environment only when it dies.

## Etymology
From endo- + toxin.

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