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English definition of “monitor”

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monitor

noun [C]  /ˈmɑn·ɪ·t̬ər/ us  

monitor noun [C] (SCREEN)

a device with a screen on which words or pictures can be shown: a computer monitor

monitor noun [C] (WATCHER)

a person who has the job of watching or checking particular things, or a machine that regularly tests or records things: United Nations monitors were prevented from entering the area. A fetal monitor records an unborn baby’s heartbeat. In school, a monitor is a student with special duties who helps the teacher: the attendance monitor

monitor

verb [T]  /ˈmɑn·ɪ·t̬ər/ us  

monitor verb [T] (WATCH)

to watch and check something carefully over a period of time: They hired an accountant to help monitor cash flow. The nurse is monitoring his heart rate and respiration.
(Definition of monitor from the Cambridge Academic Content Dictionary © Cambridge University Press)
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