# denaturation

> English word · Noun · IPA /diːˌnætʃəˈɹeɪʃən/ · frequency rank #91,414

## Definitions
1. The deliberate addition of a noxious substance to alcohol to make it unfit to drink
2. The change of folding structure of a protein (and thus of physical properties) caused by heating, changes in pH, or exposure to certain chemicals.

## Etymology
From denature + -ation.

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