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Definition of monitor:

  1. A monitor nozzle.
  2. A tool holder, as for a lathe, shaped like a low turret, and capable of being revolved on a vertical pivot so as to bring successively the several tools in holds into proper position for cutting.
  3. An ironclad war vessel, very low in the water, and having one or more heavily- armored revolving turrets, carrying heavy guns.
  4. Any large Old World lizard of the genus Varanus; esp., the Egyptian species ( V. Niloticus), which is useful because it devours the eggs and young of the crocodile. It is sometimes five or six feet long.
  5. Hence, specifically, a pupil selected to look to the school in the absence of the instructor, to notice the absence or faults of the scholars, or to instruct a division or class.
  6. One who admonishes; one who warns of faults, informs of duty, or gives advice and instruction by way of reproof or caution.


supervise, monitor lizard, check, go over, taster, ride herd on, adviser, accelerator card, superintend, head boy, old boy, catheter, oversee, cover, bus, bridgeware, accelerated graphics port, quality controller, inspector, back end, scrutinize, boarder, A student, watch, evaluator, dropout, base hardware, EKG, head girl, manage, monitoring device, regulator, inspect, old girl, defibrillator, ECG, drip, drain, grader, review, admonisher, check over, study, ADC, reminder, electrocardiograph, varan, auxiliary device, director, informant, EEG, A drive, balloon, classmate, tester, serviceperson, proctor, AGP, electrocardiogram, examine.

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