| 释义 |
extractor|ɛkˈstræktə(r)|
Also 7–9 extracter.
[f. as prec. + -or.]
1. One who extracts.
1611Cotgr., Spargirique..an Alchymist, or extractor of quintessences. 1651Biggs New Disp. ⁋79 The juice..is drawn out by the Extractors, who..resolve the dreggs..of the Parenchyma. 1755Johnson, Extractor, the person or instrument by which any thing is extracted. 1828Blackw. Mag. XXIV. 198 Healer of diseases, and extractor of money. 1868Morn. Star 16 June, Mr. Abrams..begged to say that his client was not a corn-cutter, but a corn-extractor.
2. a. One who selects and copies out quotations.
1813Edin. Rev. XXI. 267 A judicious extractor..might accommodate both classes of readers. 1884Blackw. Mag. June 824/1 The extractor who looks for a fitting pause in the spate of Mr. Ruskin's eloquence.
b. spec. in Sc. Law. (See quot. 1861.)
1687Act Sederunt 23 Feb., The Lords do extend the priviledges..to..four extracters in each of the three clarks offices of the Session. 1751Ibid. 4 Jan., The Lords..do..prohibit..all agents from being extractors, and all extractors from agenting. 1810in Hansard Parl. Deb. June, [Mr. Thomas Scott] was appointed to the office of an Extractor. 1861W. Bell Dict. Law Scot. 374/2 Extractor..the official person by whom the extract of a decree or other judicial proceeding is prepared and authenticated. 1868[see extractable].
3. An instrument for drawing or pulling out anything; esp. that part of a breech-loading gun which removes the cartridge. Also, an instrument for extracting honey from the combs. Cf. honey-extractor s.v. honey n. 7.
1753N. Torriano Midwifry 18 They never turned children..their only Resource was to Knives, Extractors, etc. 1859F. A. Griffiths Artil. Man. (ed. 9) 168, 1 setter. 2 needles. 1 extractor. 1871Daily News 11 Apr. 6 The loaded man opens the breech of his rifle, uses the extracter, takes out the cartridge. 1875Encycl. Brit. III. 501/1 To a German apiarian we are indebted for the invention of a machine called the honey-extractor... There are various patterns of the machine, but the principle of all may be said to be the same, that of centrifugal force. 1885J. J. Manley Brit. Almanac Comp. 19 Extractors, comb foundations and other appliances used in bee-keeping. 1886F. G. Jenyns Bk. about Bees 150 When the bee-keeper wishes to obtain the greatest possible quantity of honey he..uses to a great extent the machine called an extractor. 1938–9Army & Navy Stores Catal. 991 All types of Hives, Extractors, etc.
†4. A solvent used to extract (juices, etc.). Obs.
1678Salmon Lond. Disp. 852/1 The strength of the Extracter or dissolvent.
5. attrib., as extractor fan, a ventilation fan in a window, outside wall, etc., which replaces stale air indoors with fresh air.
c1945Design at Home (C.E.M.A.) 13/1 Extractor fan to remove cooking odours and steam. 1958Listener 23 Oct. 671/1 You can fit extractor fans in your windows. 1967‘M. Hunter’ Cambridgeshire Disaster iv. 26 He..noted the meal half prepared and the whir of the extractor fan.
Hence exˈtractorship, the office of an extractor (in sense 2 b).
1837Lockhart Scott xx, Mr. Thomas Scott's appointment to this Extractorship. 1877Geneal. Mem. Family Sir W. Scott 61 Sir Walter secured for him an extractorship in the General Register House. |