define custodian
custodian (plural custodians) A person entrusted with the custody or care of something or someone; a caretaker or keeper. After their parents' death, their aunt became the children's custodian.â. The building's custodian could fix nearly anything. The place always looked great!â.
The term custodian may refer to: 1  Person who has responsibility for or looks after something, such as a museum, financial assets, or a culture or tradition;