Monitor word meaning and definition

[noun] any of various large tropical carnivorous lizards of Africa Asia and Australia; fabled to warn of crocodiles
[noun] a piece of electronic equipment that keeps track of the operation of a system continuously and warns of trouble
[noun] electronic equipment that is used to check the quality or content of electronic transmissions
[noun] display consisting of a device that takes signals from a computer and displays them on a CRT screen
[noun] an iron-clad vessel built by Federal forces to do battle with the Merrimac
[noun] someone who gives a warning so that a mistake can be avoided
[noun] someone who supervises (an examination)
[verb] keep tabs on; keep an eye on; keep under surveillance

\Mon"i*tor\, n. [L., fr. monere. See {Monition}, and cf. {Mentor}.] 1. One who admonishes; one who warns of faults, informs of duty, or gives advice and instruction by way of reproof or caution. You need not be a monitor to the king. --Bacon. 2. 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. 3. (Zo["o]l.) 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. 4. [So called from the name given by Captain Ericson, its designer, to the first ship of the kind.] An ironclad war vessel, very low in the water, and having one or more heavily-armored revolving turrets, carrying heavy guns. 5. (Mach.) 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. {Monitor top}, the raised central portion, or clearstory, of a car roof, having low windows along its sides.
\Mon"i*tor\, n. A monitor nozzle.

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