单词 | screened |
释义 | screenedadj. 1. a. That has been sifted or separated out using a large sieve or other filter. ΘΚΠ the world > physical sensation > cleanness and dirtiness > freedom from impurities > removal of impurities > sifting > [adjective] > sifted ybontydc1430 sifted1485 well-sifted1526 riddled1600 screened1665 sieved1971 1665 J. Rea Flora i. 5 Lay it something thick, and beat down every course, the worser in the bottom, and fine screened gravel on the top. 1677 J. Worlidge Systema Horti-culturæ i. iii. 32 The Gravel Walkes..which if made with a fine skreened red Gravel do very much adorn your Garden. 1759 P. Miller Gardeners Dict. (ed. 7) at Euphorbia The best Mixture of Earth for these Plants is, about a fourth Part of screened Lime Rubbish, a fourth Part of Sea Sand, and half of light fresh Earth from a Common. 1838 Civil Engineer & Architect's Jrnl. 1 341/2 A composition of ‘screened’ (otherwise almost uselessly small) coal, river mud, and tar. 1880 Libr. Universal Knowl. XI. 404 The joints should be carefully hand-filled with fine screened sand. 1919 M. M. Steyn Diary S. Afr. 148 We threw the screened or ‘babied’ gravel into the cradle where the stuff was rocked whilst being washed. 2006 Times of India 27 Nov. 16/1 (advt.) Dry screened sand, Free from clay mica, oil and other foreign material. b. That has undergone screening (screening n. 8); that has been selected or admitted by means of screening. ΘΚΠ the mind > attention and judgement > enquiry > investigation, inspection > [adjective] > investigated, examined examinate?a1475 examined1503 inspected1697 screened1951 1951 W. O. Fenn in L. C. Mead Select. Mil. Manpower 32 Psychological testing on medically screened personnel without the inclusion of further physiological parameters might still yield a statistically useful result. 1957 Economist 26 Oct. 321/1 A drive for Party members among discreetly screened intellectuals,..is also under way. 1992 P. K. Manning in E. S. Buzawa & C. G. Buzawa Domest. Violence: Changing Criminal Justice Response iii. 44 It serves to record and allocate screened calls as jobs automatically to dispatchers responsible for a given area of the city. 2001 N.Y. Times 23 July a17/3 A pocket of housing erected with public funds, with carefully screened residents who will constitute the unbeatable core of the politician's voters. 2011 Health Daily Digest (Nexis) 9 Aug. Every screened compound was already considered as safe for use in humans or animals, although not necessarily for use against malaria. 2. a. (a) Sheltered, protected, or concealed by or as by a screen. Also of an area or space: divided, separated, or enclosed by or as by a screen or partition; = screened-off adj. at Compounds 1. ΘΚΠ the world > action or operation > safety > protection or defence > refuge or shelter > [adjective] > of the nature of a shelter > sheltered sheltered1597 covert1610 covered1685 screened1696 shrouded1841 1696 W. Whiston New Theory of Earth iv. 355 In the more retir'd and skreen'd Plains and Valleys. 1820 W. Scott Abbot I. v. 116 We must have a screened seat for you in the chapel, that your gentility may be free from the eyes of common folks! 1825 New Times 24 Dec. I said..that he should have a screened cabin on the main deck, which would be more airy. 1861 D. Costello Piedmont & Italy II. vi. 89 Offering to the bather a perfectly screened and shaded space, into which the waves run freely. 1869 R. Browning Ring & Bk. III. ix. 201 Midnight meetings in a screened alcove Must argue folly in a matron. 1887 Hampshire Tel. & Sussex Chron. 3 Sept. 2/2 Scores of visitors were content to find temporary accommodation in the screened space between the reading and refreshment rooms. 1951 S. Longstreet Pedlocks ii. v. 93 The screened, discreet box at the Comique led to an unbelievably evil circus at the Casino. 2003 N.Y. Times (Nexis) 12 Jan. (Late ed.) v. 10/1 The tub and shower are outdoors in a screened garden with gorgeous tropical vegetation. (b) figurative. Hidden away; sheltered.Chiefly in screened existence. ΘΚΠ the mind > mental capacity > knowledge > hiding, concealing from view > keeping from knowledge > [adjective] privya1398 palliate?a1425 beguiled1561 masked1567 covert1574 retired1596 remote1601 palliated1612 unsuspected1620 lapped1637 sopited1646 veiled1651 perdua1734 ulterior1735 screened1844 marzipanned1979 1844 Queen's Regulations & Orders Army 123 The positive absence of Crime is the criterion of a well-established Discipline, not its screened existence. 1908 Smart Set June 73/1 These two lingered on, drawn together by what they had witnessed—this great and awful thing so apart from their screened existence. 1931 Lancet 14 Mar. 573/1 The officers' more screened existence would be inadequate to protect them from infection during an epidemic of ship influenza. 2000 C. G. Caffentzis Exciting Industry of Mankind v. 401 ‘Influence’ was a popular political term of the day, borrowed from the dictionary of the occult and transformed, via Newtonian physics, into the glossary of Walpolean politics, i.e., the effecting of events at a distance by hidden or screened forces. b. Of a meteorological instrument, esp. a thermometer: placed behind or within a screen (screen n.1 15). Of a temperature: measured behind or within a screen. ΘΚΠ the world > the earth > weather and the atmosphere > weather > study or science of weather > meteorological instruments > [adjective] > placed inside a screen screened1845 1845 P. E. de Strzelecki Physical Descr. New S. Wales viii. 388 The degree of temperature shown by the screened thermometer being considered as zero [etc.]. 1871 Brit. Med. Jrnl. 23 Sept. 347/2 I have several times found ice formed on the top of my house, when a screened thermometer in the open air close by has not sunk lower than 35 deg. Fahr. 1894 Daily News 3 Jan. 5/4 Thirteen degrees of frost in the heart of London is a record which is not often obtained from a screened glass. 1920 Westm. Gaz. 2 Dec. 6/4 At Greenwich, a minimum screened temperature of 27 deg. was registered. 1947 R. Bush Harvesting & Storing Garden Fruit ii. 27 The [peach] fruitlets shortly after setting, and as they begin to swell, will only stand a temperature of 29° F. as recorded by a screened thermometer. 2002 Adv. in Agronomy 76 222 The assumption made is that the screened temperature is an adequate representation of the crop temperature. c. Originally and chiefly North American. Covered or fitted with a mesh screen or screens; esp. (of a covered veranda or similar structure) having walls or windows fitted with or consisting of mesh screens in order to keep out insects and other pests. Frequently in screened-in. ΚΠ 1867 Burlington (Iowa) Daily Hawk-eye 1 Jan. Opening out of the kitchen is a door communicating with a screened porch. 1907 Outlook 19 Oct. 343/2 The young Reverend Arthur Bliss sat on Dr. June's screened-in porch. 1968 Globe & Mail (Toronto) 13 Jan. 44/3 (advt.) Large fully equipped hotel kitchen, glassed and screened verandah. 1982 D. Hagberg Last come Children iii. vii. 231 He could look up at the tiny screened window that divided the participant from the priest. 1985 Amer. Motorcyclist May 87/2 (advt.) Screened in vent openings guarantee the proper air flow and cooling. 2002 S. L. Carter Emperor Ocean Park xv. 186 Don and Nina Felsenfeld, our elderly next-door neighbors,..are sitting on their screened porch. d. Of an electrical wire, circuit, device, etc.: fitted with a conducting cover, sheath, or shield, typically so as to be protected from, or prevented from causing, interference due to electric or magnetic fields (cf. screen v. 4). Also Radio (of an aerial): that is shielded from losing energy to the earth by an intervening network of wires (cf. screen n.1 3c). ΘΚΠ the world > matter > physics > electromagnetic radiation > [adjective] > shielded screened1886 the world > matter > physics > electromagnetic radiation > electricity > electrically induced magnetism > [adjective] > protected screened1886 1886 Electr. World 4 Dec. 270/3 The whole coil and every point of it is situated where the resultant force is zero, that is, in precisely the same condition as M. Breguet's screened wire. 1922 Jrnl. Inst. Electr. Engineers 60 584/1 The power required to produce a given current in the aerial..is reduced four-fold when using the screened aerial. 1922 Wireless World 1 July 416/2 A design for a screened oscillator was prepared. 1933 Pract. Wireless 4 Feb. 962/2 The ingenious screened wiring kit manufactured by Remax Radio is the very thing for temporary or permanent screening. 1970 J. Earl How to choose Tuners & Amplifiers vi. 134 Screened cable must be used on these low-level inputs to avoid excessive hum coupling. 2009 Atomic Energy 106 66 To decrease the influence of electromagnetic interference, the signal was..fed via a screened twisted pair into the detection system. e. Physics. Of a radioactive source: enclosed or contained within a layer of material to prevent or reduce the escape of ionizing radiation. Now rare.The usual term is now shielded.In quot. 1906 showing equivalent use of unscreened adj. ΚΠ 1906 E. Rutherford in London, Edinb., & Dublin Philos. Mag. 6th Ser. 12 361 The ⍺ rays from the unscreened source.] 1909 Lancet 7 Aug. 398/1 Unscreened radium was applied to the surface [of the carcinoma]; a screened apparatus was used for the deeper parts of the growth. 1936 Jrnl. Pathol. & Bacteriol. 43 267 (title) The effect of prolonged irradiation with screened radium. 2000 R. L. Kobus et al. Building Type Basics for Healthcare Facilities ii. 91/1 This radiation can be introduced to the body..by means of..a screened radioactive source. ΘΚΠ society > communication > information > publishing or spreading abroad > publishing or spreading by leaflets or notices > [adjective] > billed or posted posted1648 placarded1854 screened1867 billed1895 postered1916 1867 J. C. Jeaffreson Bk. about Lawyers (U.S. ed.) vii. xxxiv. 272 It is not unusual..to see on the screened list of students about to be called to the bar the names of gentlemen who have caused themselves to be described in the quasi-public lists as the sons of tradesmen. 1869 Morning Post 22 Nov. 6/6 The benchers of the Middle Temple..have not thought it inconsistent with their character and position as gentlemen to omit from the screened list the names of benchers who, if they had been ordinary members of the Inn, would unquestionably have appeared there. 1897 Westm. Gaz. 12 May 4/2 Two are described in the ‘screened list’, as ‘gentlemen’. 4. Photography and Printing. Of an image or surface: obtained by means of or with the aid of a screen (screen n.1 21); rendered in half-tone or with a textured pattern using a screen. ΚΠ 1895 Brit. Jrnl. Photogr. 6 Dec. 780/1 By this means a screened negative is produced without the employment of gauze or like screens in the camera. 1939 Pop. Sci. Monthly Apr. 64/2 A plate of zinc was coated with a sensitized gelatin film, and a properly screened negative containing the matter to be printed was photographically printed on it. 1946 H. Whetton Pract. Printing & Binding xxv. 299/2 Type or pictures have now to be printed upon the screened tissue. 1952 R. W. Polk & E. W. Polk Pract. of Printing (rev. ed.) xxxi. 232 (caption) Example of surprinting on 120-line screened background of varying densities. 1973 M. Astrua Man. Colour Reprod. i. 106 For the preparation of screened positives or negatives, a study has been made of suitable screens. 1975 J. B. Harley Ordnance Survey Maps vii. 107 Printed in solid black and screened black respectively. 2009 P. Andrews Adobe Photoshop CS4 Dict. 127/2 The Halftone Pattern filter..simulates the look of a picture that has been printed using a halftone or screened pattern. 5. Projected on to, shown on, or broadcast on a screen; spec. shown at the cinema or on television. ΘΚΠ society > leisure > the arts > performance arts > cinematography > film show > [adjective] screened1910 society > leisure > the arts > visual arts > photography > viewing of photographs > [adjective] > projected on to screen screened1910 society > communication > broadcasting > television > [adjective] > broadcast on television televised1927 on-screen1963 screened1966 1910 Evening Democrat (Fort Madison, Iowa) 23 Nov. 5/3 (heading) Screened Pictures. 1917 C. N. Bennett Guide to Kinematogr. ix. 160 (heading) Distortion of the screened image. 1966 Listener 24 Nov. 775/3 Selectivity in exposure, perception, attention, retention, etc., means that the effect of screened violence will not be constant and will vary from person to person. 1990 M. A. Watson Expanding Vista ii. 41 Studio and network executives responsible for the screened program were then interrogated by the subcommittee staff. 2008 L. Dombrowski Films of S. Fuller vi. 191 Fuller's most controversial project and still one of his most rarely screened films is White Dog. 6. = screen-printed adj. Cf. silk-screened adj. ΘΚΠ society > leisure > the arts > visual arts > printmaking > surface and planographic printing > screen printing > [adjective] silkscreening1930 screen-printed1931 screened1934 silk-screened1937 serigraphic1945 1934 Harper's Bazaar Mar. 36 (advt.) Dress Suits... Cheeche, new screened fabric in Rayon by Du Pont, doubles their adaptability. 1975 N.Y. Mag. 10 Mar. 85/1 Gingham-lined tote with small screened logo. 2008 R. Gillman Create your own Hand-printed Cloth vii. 79 (caption) Result: screened fabric with a unique design. Compounds C1. With adverbs, forming adjectives corresponding to phrasal constructions at screen v. screened-off adj. divided, separated, or enclosed by or as by a screen or partition.Often with the connotation of concealment: cf. sense 2a(a). ΘΚΠ society > inhabiting and dwelling > inhabited place > a building > furniture and fittings > screen > [adjective] screened-off1833 1833 T. Hook Parson's Daughter III. xi. 285 A screened-off place was made up for the maids. 1865 G. A. Sala My Diary in Amer. II. 46 Sometimes the bar is at the side, screened off, and genteelly disguised under the name of ‘sample room’. 1973 J. Wainwright Pride of Pigs 78 They led him..to the ward, and pointed out the screened-off bed. 2001 D. Wilson In Lion's Court xxxiv. 507 Clergy fussing round an ‘altar’ in some screened-off sanctuary. screened-out adj. (a) obtained, removed, or separated from a substance, mixture, etc., using large sieve or other filter; (b) identified, selected, excluded, or removed by means of screening (screening n. 8). ΚΠ 1906 Sci. Amer. 14 July 34/1 The tank or receptacle is filled with water, into which the screened-out knots and large chips are discharged. 1953 Social Service Rev. 27 403/1 We do not know whether the screened-out cases had their needs met or not. 1965 Food Manuf. Nov. 65/1 Screened-out materials are not fed back to the flour production line. 1995 CUPA Jrnl. 46 ii. 21 The employer must be prepared to explain why the screened out candidates are not qualified. 2005 J. C. Knudsen Capricious Worlds i. 20 Even when screened-out refugees were ‘assisted’ to the plane by a number of policemen, the program remained ‘voluntary’. C2. screened grid n. Electronics (now chiefly historical) attributive designating a thermionic valve in which the anode is screened from the control grid by a screen grid (spec. a tetrode, lacking the suppressor grid present in a pentode); containing or using such a valve. ΘΚΠ the world > matter > physics > electromagnetic radiation > electronics > electronic devices or components > thermionic valve > [noun] > grid grid1907 screen1914 screened grid1927 screen grid1927 suppressor grid1931 suppressor1932 1927 Jrnl. Optical Soc. Amer. 15 32 Reaction of the tuning circuit on the crystal, though small, may be avoided by the use of a screened-grid tube, or a neutralized tube. 1929 Radio Times 8 Nov. 409 (advt.) You could not get a better 3-valve set than the Brown Screened Grid Receiver. 1943 C. L. Boltz Basic Radio x. 164 The pentode has ousted the screened-grid valve from radio circuits. 1968 G. H. Olsen Electronics iv. 95 This second grid serves as an electrostatic screen and reduces the anode-to-grid capacitance... The resulting valve is known as a screened grid valve. 2009 F. Nebeker Dawn of Electronic Age i. 41 In 1916 Schottky inserted a grid between control grid and anode in order to increase gain, thus making what came to be called the screened grid tube. This entry has been updated (OED Third Edition, March 2017; most recently modified version published online June 2022). < |
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