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