| 释义 |
mon·i·tor
I. \ˈmänəd.ə(r), -ətə(r) sometimes -əˌtȯ(ə)r or -ȯ(ə)\ noun
(-s)
Etymology: Latin, one that reminds or warns, overseer, from monitus + -or
1.
a. : a student appointed to assist a teacher (as by keeping order, performing routine duties, or in some educational systems teaching younger students)
b. : a person or thing that gives advice (as of caution) or instruction regarding conduct : one that reproves, reminds, or instructs : admonisher, adviser
< enough practical experience on the fighting line to serve as monitors and instructors for troops green in the game of war — New York Times >
: reminder
< observed the customary stack of documents on this busy man's reading table, and … took it as a silent monitor — Upton Sinclair >
c.
(1) : one that monitors something
< learned from a broadcast heard by a United States monitor >
< an electronic monitor >
(2) : an observer responsible for reporting misdeeds
< the correspondents put fresh vigor into their classic role as people's monitor over the Government — Time >
(3) : an instrument that measures (as vital signs during surgery) or gives warning (as of excessive radiation)
(4) : a cathode-ray tube used for display (as of television pictures or computer information)
2. archaic : a board worn or fastened across the back to give erectness to the figure
3. also monitor lizard [so called from the belief that such lizards give warning of the presence of crocodiles] : any of various large tropical Old World pleurodont lizards closely related to the iguanas and constituting the genus Varanus and the family Varanidae and including an African lizard (V. niloticus) that destroys crocodile eggs — compare komodo dragon
4. [from the Monitor, the first ship of this type, designed in 1862 for the United States Navy by John Ericsson died 1889 American engineer and inventor born in Sweden]
a. : a heavily armored warship formerly used in coastal operations, having a very low freeboard and one or more revolving turrets with heavy guns, and sacrificing speed and coal capacity to steadiness as gun platforms and to thickness of armor
b. : a small modern warship with shallow draft and two 15-inch guns for coastal bombardment
5. also monitor top : a raised central portion of a roof (as along the ridge of a gable roof) having low windows or louvers along its sides and used to provide light and air
6. or monitor nozzle : a nozzle capable of turning completely round in a horizontal plane with a limited play in a vertical plane and used in hydraulic mining and fire fighting
7. : a tool-holding turret on a machine
II. verb
(monitored ; monitored ; monitoring \-d.əriŋ, -tər-, -ȯr-, -nə.triŋ\ ; monitors)
transitive verb
1.
a. : to check and sometimes to adjust (as a radio or television signal, channel, or program) for quality or fidelity to a band by means of a receiver during or sometimes before transmission
< the frequency must be exact, constant, and carefully monitored — M.H.Aronson >
< gradually introducing automatic monitoring of the aural quality of its programs — Times Review of Industry >
b. : to check (as a radio or television broadcast or a telephone conversation) for military, political, or criminal significance by means of a receiver
< monitor radiotelephone messages out of Hawaii — New Republic >
2. : to test (as air, a surface, a beam of radiation, clothing, personnel) for intensity of radiation (as from radioactivity) to determine whether the intensity comes within specified limits
< monitor the upper air to collect telltale evidence of atomic explosions — Time >
3. : to watch, observe, or check especially for a special purpose
< had to monitor every word and thought — Polly Adler >
< crew chiefs monitored engines and the array of dials, switches and lights that told them how each item of equipment was functioning — Gordon Williams >
< monitor political gossip >
4. : to keep track of, regulate, or control (as a process or the operation of a machine)
< personnel … involved in monitoring the work of this contract — A.A.Campbell >
— used especially of an automatic electronic device
< the line is monitored by a new instrument called the quality control indicator — Science News Letter >
specifically : to keep track of (aircraft in flight) by means of radar
< radar stations monitoring all our heavy bombers — W.R.Frye >
5. : to check or regulate the volume or quality of (sound) in preparation for recording or during recording
< sound is monitored and the correct effect is introduced; it would obviously be ludicrous to have close-up sound in a long shot — O.B.Hanson >
intransitive verb
: to act as a monitor
III. noun
: software or hardware that monitors the operation of a system and especially a computer system |