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English definition of “monitor”

monitor

noun [C] (WATCHER)   /ˈmɑn·ɪ·t̬ər/
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
(Definition of monitor noun (WATCHER) from the Cambridge Academic Content Dictionary © Cambridge University Press)
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