from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A computer program contained within another program that operates semi-independently of the encasing program.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A program contained within a larger program
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a set sequence of steps, part of larger computer program
sub- + program (Wiktionary)