[pros-es-er or, esp. British, proh-ses-]


a person or thing that processes.
  1. a controller, the key component of a computing device that contains the circuitry necessary to interpret and execute electrical signals fed into the device.
  2. a computer.

Nearby words

  1. procession,
  2. processional,
  3. processionary,
  4. processionary moth,
  5. processive,
  6. prochein ami,
  7. prochlorite,
  8. prochloron,
  9. prochondral,
  10. prochoos

Sometimes proc·ess·er.

Origin of processor

First recorded in 1905–10; process + -or2 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for processor

British Dictionary definitions for processor



computing another name for central processing unit
a person or thing that carries out a process
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 processor



1909, agent noun in Latin form from process (v.). Data processor is from 1957; word processor is from 1973; food processor in the kitchen appliance sense also is from 1973.

Online Etymology Dictionary, © 2010 Douglas Harper

Science definitions for processor


[prŏsĕs′ər, prōsĕs′-]

A part of a computer, such as the central processing unit, that performs calculations or other manipulations of data.
A program that translates another program into a form acceptable by the computer being used.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.