n. 监督器, 级长, 监听员, 班长, 监视器, 告诫物

vt. 监视, 监听, 监督

vi. 监视, 监听, 监督

[计] 监视器, 监视程序; 监视

[化] 监测器; 监控器; 监视盘; 监视器

[医] 放射量探测器, 监护, 监护员, 病人监护仪

[经] 荧幕; 监督, 监听

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 ({Varanus
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.

6. A monitor nozzle.
[Webster 1913 Suppl.]

{Monitor top}, the raised central portion, or clearstory, of
a car roof, having low windows along its sides.