denature

/diˈneɪtʃər/
verb
  1. To change the natural qualities or structure of something, especially a protein or DNA, often by heat, chemicals, or other processes.
    • The scientist used a strong acid to denature the DNA for the experiment.
    • High temperatures can denature enzymes, making them stop working.
    • Heating an egg denatures the protein in the white, causing it to turn solid.
  2. To make alcohol unfit for drinking by adding a poisonous or unpleasant substance, usually for industrial or cleaning purposes.
    • The lab uses denatured alcohol to clean equipment because it is cheaper than pure ethanol.
    • They denature the alcohol with a bitter chemical to prevent people from drinking it.
    • Factories often denature ethanol so it can be used as a solvent without being taxed as a beverage.
Antonyms
What does "denature" mean? | whatsthatwordmean | whatsthatwordmean