|Origin:||monere 'to warn'|
a television or part of a computer with a screen, on which you can see pictures or information
She was staring at her computer monitor.
on a monitor
We could watch what was happening on the TV monitor.
a piece of equipment that measures and shows the level, speed, temperature etc of something:
piece of equipment for measuring
a heart monitor
The noise monitor recorded 98 decibels.
someone whose job is to watch an activity or a situation to see how it changes or develops, or to make sure that it is fair and legal:
somebody who watches an activity
UN monitors will remain in the country to supervise the elections.
peace/human rights etc monitors
The UN is sending peace monitors to the area.
a child who has been chosen to help a teacher in some way in class
someone whose job is to listen to news or messages on a radio and report on them