[ mahy-kroh-pros-es-er, ‐uh-ser; especially British ‐proh-ses-er, ‐suh-ser ]
/ ˈmaɪ kroʊˌprɒs ɛs ər, ‐ə sər; especially British ‐ˌproʊ sɛs ər, ‐sə sər /


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

Origin of microprocessor

First recorded in 1965–70; micro- + processor

OTHER WORDS FROM microprocessor

mi·cro·proc·es·sing, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Examples from the Web for microprocessor

British Dictionary definitions for microprocessor

/ (ˌmaɪkrəʊˈprəʊsɛsə) /


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

Scientific definitions for microprocessor

[ mīkrō-prŏs′ĕs-ər ]

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.