# trihalomethane

> English word · Noun

## Definitions
1. Any of many halogenated derivatives of methane containing three (not always the same) halogen atoms; many are environmental pollutants

## Etymology
From tri- + halomethane.

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