Meaning of “sterilize” - Learner’s Dictionary

sterilize

verb [ T ] ( also UK -ise) uk us /ˈsterəlaɪz/
MAKE CLEAN

to make something clean and without bacteria:

a sterilized needle
NO CHILDREN

to perform a medical operation on someone to make them unable to have children

sterilization uk us /ˌsterəlaɪˈzeɪʃən/ noun [ U ]

(Definition of “sterilize” from the Cambridge Learner’s Dictionary © Cambridge University Press)