sterilise

/ˈstɛrəlaɪz/
verb
  1. To make something completely free from bacteria or other microorganisms, typically by heating or using chemicals.
    • The nurse sterilised the surgical instruments before the operation.
    • The lab technician sterilised the work surface with alcohol.
    • You should sterilise baby bottles by boiling them in water.
  2. To make a person or animal unable to produce offspring, usually through a medical procedure.
    • Many pet owners choose to sterilise their cats and dogs to control the population.
    • The doctor explained the risks before agreeing to sterilise the patient.
    • Some farmers sterilise livestock to improve breeding outcomes.
  3. To remove or destroy the creative, exciting, or productive qualities of something.
    • The strict rules sterilised the classroom, leaving no room for fun.
    • Over-editing can sterilise a writer's natural voice.
    • The corporation's policies slowly sterilised the innovative culture.