The Collaborative International Dictionary of English v.0.48:
Custodial \Cus*to"di*al\ (k?s-t?"d?-al), a. [Cf. F. custodial, fr. L. custodia. See Custody.] Relating to custody or guardianship. [1913 Webster]WordNet (r) 3.0 (2006):
custodial adj 1: providing protective supervision; watching over or safeguarding; "daycare that is educational and not just custodial"; "a guardian angel"; "tutelary gods" [syn: custodial, tutelary, tutelar]