Meaning of microprogram

mi•cro•pro•gram

Pronunciation: (mī'kru-prō"gram, -grum), [key]
— n.
  1. a set of microinstructions that defines the individual operations that a computer carries out in response to a machine-language instruction.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.