# formalin

> English word · Noun · frequency rank #79,524

## Definitions
1. A solution of formaldehyde in water; used as a disinfectant and to preserve biological specimens.

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