sterilize means: You can use heat to kill germs. (in Cooking Dictionary)

What else does sterilize mean?

To get rid of live bacteria and other microorganisms. (in Merlin Dictionary)

You can alter or remove the reproductive organs to end a person’s ability to have offspring. (in Merlin Dictionary)

To render ineligible for germinating or bearing fruit. (in Merlin Dictionary)

Place (gold) into safekeeping to ensure that the credit or money supply is not affected. (in Merlin Dictionary)

Innocuous or not offensive. (in Merlin Dictionary)