Answer: sterilize

AnswerCrossword Clue
STERILIZEMake safe for use, in a way
STERILIZEDegerm
STERILIZEPrepare surgical tools
STERILIZEBoil, perhaps
STERILIZEPass through fire, perhaps
sterilizeMake (something) free from bacteria or other living microorganisms
sterilizeDeprive (a person or animal) of the ability to produce offspring, typically by removing or blocking the sex organs
sterilizeMake (land or water) unable to produce crops or support life
sterilizeto render sterile