two-level subroutine

two-level subroutine

[′tü ¦lev·əl ′səb·rü‚tēn]
(computer science)
A subroutine in which entry is made to a second, lower-level subroutine.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.