subroutine

n. source code which accompanies a program and performs a certain function (Computers)

In computer science, a subroutine (function, method, procedure, or subprogram) is a portion of code within a larger program, which performs a specific task and can be relatively independent of the remaining code. The syntax of many programming languages includes support for creating self contained subroutines, and for calling and returning from them.
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n. subroutine, source code which accompanies a program and performs a certain function (Computers)

n. subroutine, source code which accompanies a program and performs a certain function (Computers)

A set of computer instructions to carry out a predefined function or computation. Note: "Open" subroutines are integrated into the main program. "Closed" subroutines are arranged so that program control is shifted to them for execution of their task(s) and then returned to the main program.