To alter its original form or state, especially of a protein, by heat, acidity etc.
To take away a natural characteristic or inherent property of (a thing or a person).
To combine fissile material with nonfissile material in order to prevent its use in an atomic weapon.
To add something to (alcohol) that makes it unsuitable for consumption but leaves it suitable for most other purposes.
To change, transform or convert one thing to another, or from one state or form to another.