sterilize

Short definition from Wiktionary

Verb

1. 1
   To deprive of the ability to procreate.
2. 2
   To make unable to produce; to make unprofitable.
3. 3
   To kill, deactivate (denature), or destroy (break apart) all living, viable microorganisms and spores on a surface, in a fluid, or contained in a compound, such as culture media or a medical product.
4. 4
   To render a planet like Earth permanently uninhabitable to all life, including even microbes, causing their complete extinction.
5. 5
   To redact (a document), removing classified or sensitive material.