# piscicide

> English word · Noun

## Definitions
1. Any substance that is poisonous to fish.
2. The killing of fish.
3. A fish that kills.
4. A fish that kills another fish, especially out of malice.

## Etymology
From pisci- + -cide.

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