| 释义 |
screen
I. \ˈskrēn\ noun
(-s)
Etymology: Middle English screne, from Middle French escren, escran, from Middle Dutch scherm screen, shield, protection; akin to Old High German skirm, skerm shield, screen, Middle Low German scerm shield, screen, Latin corium skin, hide — more at cuirass
1. : a device used as a protection from the heat of a fireplace or from drafts or as an ornamental piece: as
a. : a folding temporary partition consisting of hinged leaves usually made of wood or metal framework covered with cloth, leather, or paper — see fire screen
b. : a cloth, paper, or wooden implement with a handle to hold between oneself and the fire
c. : a high-backed settle
2.
a. : a nonbearing partition that may be solid or pierced, is often ornamental, and is carried up to a height necessary for separation and protection
b. : a passage screened or partitioned off from the lower end of the hall of a Tudor or Elizabethan house and used to connect the buttery and the kitchen
c.
(1) : choir screen
(2) : rood screen
3. : something that shelters, protects especially from injury or danger, or conceals from view: as
a. Scotland : a large head scarf
b. : a natural or cultivated growth of plants
< a screen of ivy across the window >
< a screen of tall pines sheltered the orchard from winter storms >
c.
(1) : a body of troops thrown out toward the enemy to protect a command or an area
(2) : a formation of light naval vessels (as destroyers or cruisers) about a formation of heavier ships to protect the heavier formation from attack especially by submarines or aircraft
(3) : air patrolling by fighter-interceptors to protect from air attack specific targets (as slower aircraft or surface forces) : air patrolling to defend the entire friendly territory from air incursion
(4) : smoke, camouflage, or a natural factor that protects an armed force from observation
< misty clouds … made such a perfect screen that the Confederate batteries on top of the mountain could render no effective help — American Guide Series: Tennessee >
4.
a. : something that guards : a security from possible inconvenience, censorious judgment, or harm
< adult care interposes a screen between the small child and … society — Ralph Linton >
b. : a shield for secret sometimes nefarious practices
< geniality … in our initial sessions was only a screen — A.H.Vandenberg †1951 >
< petty larceny … only a screen for something bigger — Claud Cockburn >
5.
a.
(1) : a perforated plate, cylinder, or similar device or a meshed wire or cloth fabric usually mounted on a frame and used to separate coarser from finer parts or to allow the passage of smaller portions while preventing that of larger
(2) : a continuously operating mechanical straining device for removing knots and coarse foreign matter from paper stock in suspension in water
(3) : a device for separating the grain husks from the liquid portion of whole stillage
(4) : silk screen
b. : something that resembles a screen for sifting physical materials; especially : a system for examining in order to make a separation into different groups
< the new battalion passes through the screen of officer and instructor observation — Scientific American >
6.
a.
(1) : a flat surface afforded usually by a curtain, sheet, or wall upon which an image (as a picture) is projected by a lantern, solar microscope, or motion-picture projector
(2) : the motion-picture industry
b. : something that resembles a motion-picture screen
< a collection of poems … provides the reader with that larger screen on which the poet's essential qualities are thrown — Sara H. Hay >
< engrave its picture on the screen of our mind — Walter Sorell >
7.
a. : a part of an instrument or piece of apparatus designed to prevent agencies in one part from affecting other parts
< optical screen >
< electric screen >
< magnetic screen >
b. : a device to prevent radio waves or magnetic or electric fields from crossing a particular area
8. : an erection of white canvas or wood placed near the boundary at both ends of a cricket field in line with the wickets to enable the batsmen to see the ball better
9. : a three-color mosaic of regular pattern used in making the negative and viewing the transparency in the separate screen processes of additive color photography — compare screen plate
10.
a. : a glass plate ruled with crossing opaque lines through which an image is photographed onto a plate in making a halftone and on which the latticework of the crossed lines produces a dot formation
b. : a unit of measure of the textural fineness of a halftone being the number of dots per linear inch
< a coarse 65-screen newspaper cut >
< a fine 200-screen engraving >
11.
a. : a frame holding a metallic or textile netting used especially in a window or door to exclude insects
b. : screen cloth
12. : the surface upon which an image or pattern is produced in a television or radar receiver or in a similar apparatus
13. : an act or instance of screening in athletic contests
II. verb
(-ed/-ing/-s)
Etymology: Middle English screanen, from screne, n.
transitive verb
1.
a. : to guard from injury or danger : shield from harm or punishment
< the whole village was in a conspiracy to screen the bandits >
b. : to protect from the attack of an enemy by means of an advance guard (as of fighter aircraft)
2.
a. : to give shelter or protection (as from light or wind) to
< screened his eyes with his hand >
b. : to shut off by interposing something that resembles a screen
< will perhaps try whether the magnetic power is not to be screened off — John Tyndall >
< was screened by army regulations which forbid his making political speeches — Time >
c. : to separate (an opponent in a game) as if with a screen: as
(1) : to prevent (an opponent in basketball) from reaching a desired position without causing bodily contact
(2) : to prevent (an opponent in soccer) from having a clear view of the ball by standing or moving so as to conceal it
(3) : to cover (one's own server) in order to conceal the direction of the serve from opponents in volleyball
3. : to conceal from view or knowledge : hide
< 20 paces of thick falling snow screened the man from him — Morley Callaghan >
< works in a bookshop, her identity screened from the customers — Newsweek >
4.
a.
(1) : to pass through a screen; especially : to pass (as coal, gravel, or paper stock) through a screen in order to separate one part from another
(2) : to remove by or as if by a screen — usually used with out
< moisture in the air screens out much of the solar heat radiation — Marston Bates >
b.
(1) : to examine usually methodically in order to make a separation into different groups
< the students were screened before leaving their home countries, insuring that no one with false opinions or dangerous attitudes would get through — W.C.Booth >
< carefully screens all visa applications — Ralph de Toledano >
< industry will be screened again for the young, healthy, and dispensable — Newsweek >
< several antibiotics … have been screened for antituberculosis activity — J.F.Bohmfalk >
(2) : to examine (an area) in order to remove whatever is undesirable
< preceded the diplomats and screened, made sanitary and reasonably murderproof the area of the conference — H.S.Canby >
(3) : to select by a screening process
< the colonel had invited 5000 carefully screened leading citizens to sip punch — Time >
(4) : to eliminate by or as if by a screening process
< the committee should screen from the material received any items it deems unsuitable — Accounting Review >
— usually used with out
< even the best educated … are screened out socially by the policy of white supremacy — Margaret Mackay >
(5) : to examine as a censor : censor
< passed an ordinance creating a board of review to screen literature sold in the city — James Rorty >
5. Britain : to post on a bulletin board
6.
a. : to provide with a screen to keep out insects
b. : to provide (as an electronic device) with a screen to prevent agencies in one part of an apparatus from affecting other parts
7.
a. : to project (as a motion-picture film) on a screen
< exhibitors were required by law to screen a short with every feature — Helen Grayson >
b. : to present in a motion picture
< screened an abbreviated version of the book >
< was screened in the male leads of several westerns >
8. : silk-screen
intransitive verb
: to appear on a motion-picture screen
< he screens well >
< sounds a bit more silly and maudlin than it screens — Newsweek >
Synonyms: see conceal
III. adjective
Etymology: screen (I)
1. : having a screen to keep out insects
< screen door >
< screen porch >
2. : of or relating to motion pictures
< an actor who became famous as a screen star >
< the novel's screen potentialities — Publishers' Weekly >
3. : silk-screen
IV. noun
: the information displayed on a computer screen at one time |