[mahy-kroh-pros-es-er, ‐uh-ser; especially British ‐proh-ses-er, ‐suh-ser]


an integrated computer circuit that performs all the functions of a CPU.

Nearby words

  1. microporous,
  2. micropower,
  3. microprint,
  4. microprism,
  5. microprobe,
  6. microprogram,
  7. microprogramming,
  8. microprojector,
  9. micropropagation,
  10. micropsia

Origin of microprocessor

First recorded in 1965–70; micro- + processor

Related formsmi·cro·proc·es·sing, noun

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for microprocessor

British Dictionary definitions for microprocessor



computing a single integrated circuit performing the basic functions of the central processing unit in a small computer
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for microprocessor



1970, from micro- + processor.

Online Etymology Dictionary, © 2010 Douglas Harper

Science definitions for microprocessor



An integrated circuit that contains a processor, such as a central processing unit.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.