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2 definitions found
 for subroutine
From WordNet (r) 3.0 (2006) :

      n 1: a set sequence of steps, part of larger computer program
           [syn: routine, subroutine, subprogram, procedure,

From The Free On-line Dictionary of Computing (30 December 2018) :

      (Or "procedure") A sequence of instructions
     for performing a particular task.  Most programming languages,
     including most machine languages, allow the programmer to
     define subroutines.  This allows the subroutine code to be
     called from multiple places, even from within itself (in which
     case it is called recursive).  The programming language
     implementation takes care of returning control to (just after)
     the calling location, usually with the support of call and
     return instructions at machine language level.
     Most languages also allow arguments to be passed to the
     subroutine, and one, or occasionally more, return values to
     be passed back.
     A function is often very similar to a subroutine, the main
     difference being that it is called chiefly for its return
     value, rather than for any side effects.

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