/ kʌˈstəʊdiəl; NAmE -ˈstoʊ-/ adjective [ usually before noun ] ( law )
1.
involving sending sb to prison :
The judge gave him a custodial sentence (= sent him to prison) .
2.
connected with the right or duty of taking care of sb; having custody :
The mother is usually the custodial parent after a divorce.
OPP non-custodial