sterilization
noun(British English also sterilisation)
[uncountable, countable]the act of killing the bacteria in or on something 消毒，灭菌 Adequate sterilization of medical and surgical instruments is essential. 医疗和手术器械的充分消毒至关重要。
the act of making a person or an animal unable to have babies, especially by removing or blocking their sex organs 绝育(手术) the sterilization of stray dogs and cats 流浪狗和猫的绝育