# sickener

> English word · Noun

## Definitions
1. One who, or that which, sickens.
2. A small, bright red and possibly poisonous russula or brittlegill (Russula emetica).

## Etymology
From sicken + -er.

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