Meaning of “protective” - Learner’s Dictionary

protective

adjective uk us /prəˈtektɪv/
PROTECTING

B2 giving protection:

protective clothing
a protective mask
CARING

wanting to protect someone from criticism, hurt, danger, etc because you like them:

She's fiercely protective of her children.

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