• Denaturation (biochemistry)
  Denaturation (biochemistry)
  Denaturation is a process in which proteins or nucleic acids lose their tertiary structure and secondary structure by application of some external stress or compound, such as a strong acid or base, a concentrated inorganic salt, an organic solvent , or heat...
  
  , a structural change in macromolecules caused by extreme conditions
• Denaturation (fissile materials)
  Denaturation (fissile materials)
  Denaturation of fissile materials suitable for nuclear weapons is the process of transforming them into a form that is not suitable for weapons use and can not easily be reversely transformed...
  
  , transforming fissile materials so that they cannot be used in nuclear weapons
• Denaturation (food)
  Denaturation (food)
  Food is deliberately denatured when a substance, known as a denaturant, is added to render the food unpleasant to consume or poisonous. Aversive agents—primarily bitterants and pungent agents—are used to produce an unpleasant flavor. For example, the bitterant denatonium might be added to food used...
  
  , intentional adulteration of food or drink rendering it unfit for consumption while remaining suitable for other uses

See also

• Denatured alcohol, also known as methylated spirit
• Denaturalization, the reverse of naturalization, when a state deprives one of its citizens of his or her citizenship