verb (used with object)

verb (used without object)

to serve as a monitor, detector, supervisor, etc.

Nearby words

  1. monism,
  2. monist,
  3. monistic,
  4. moniter,
  5. monition,
  6. monitor versus merrimack,
  7. monitorial,
  8. monitory,
  9. monitress,
  10. moniz

Origin of monitor

1540–50; < Latin: prompter, adviser, equivalent to moni-, variant stem of monēre to remind, advise, warn + -tor -tor

Related formsmon·i·tor·ship, nounself-mon·i·tor·ing, adjectiveun·mon·i·tored, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for monitor

British Dictionary definitions for monitor



a person or piece of equipment that warns, checks, controls, or keeps a continuous record of something
  1. a senior pupil with various supervisory duties
  2. a pupil assisting a teacher in classroom organization, etc
a television screen used to display certain kinds of information in a television studio, airport, etc
the unit in a desk computer that contains the screen
  1. a loudspeaker used in a recording studio control room to determine quality or balance
  2. a loudspeaker used on stage to enable musicians to hear themselves
a device for controlling the direction of a water jet in fire fighting
any large predatory lizard of the genus Varanus and family Varanidae, inhabiting warm regions of Africa, Asia, and AustraliaSee also Komodo dragon
Also called: giant mining a nozzle for directing a high-pressure jet of water at the material to be excavated
(formerly) a small heavily armoured shallow-draught warship used for coastal assault

verb (tr)

to act as a monitor of
to observe or record (the activity or performance) of (an engine or other device)
to check (the technical quality of) (a radio or television broadcast)
Derived Formsmonitorial (ˌmɒnɪˈtɔːrɪəl), adjectivemonitorially, adverbmonitorship, nounmonitress, fem n

Word Origin for monitor

C16: from Latin, from monēre to advise

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 monitor
Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for monitor




A usually electronic device used to record, regulate, or control a process or system.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for monitor



A device that accepts video signals from a computer and displays information on a screen. Monitors generally employ cathode-ray tubes or flat-panel displays to project the image. See Note at pixel.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.