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Meaning of microinstruction

mi•cro•in•struc•tion

Pronunciation: (mī"krō-in-struk'shun), [key]
— n. Computers.
  1. an instruction that defines part of a machine-language instruction in terms of simpler operations.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.