Crossword Dictionary

What's The Definition Of Monitor?

\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.