closure

In transportation, the process of a unit arriving at a specified location. It begins with the arrival of the first element at a designated location and ends with the arrival of the last.

An "anonymous" subroutine that, when a reference to it is generated at run time, keeps track of the identities of externally visible lexical variables even after those lexical variables have supposedly gone out of "scope". They're called "closures" because this sort of behavior gives mathematicians a sense of closure.

Synonym splice closure.