| 释义 |
eduction|ɪˈdʌkʃən|
[ad. L. ēductiōn-em, noun of action f. ēdūcĕre to lead forth.]
†1.
a. A leading forth or out.
b. A putting forth (of the tongue). Obs.
1649Bulwer Pathomyot. ii. x. 233 This ironicall eduction of the Tongue. 1654Trapp Comm. Job i. 13 Israel's eduction out of Egypt. 1659T. Wall Char. Enemies of Ch. 19 God ascribes their eduction from ægypt..unto Moses.
†2. Med. Removal by drawing forth. Obs.
1657Tomlinson Renou's Disp. 139 We need not suspect any harme by the eduction of some of them. 1684tr. Bonet's Merc. Compit. xiv. 493 The eduction of the Matter is hindred. 1710T. Fuller Pharm. Extemp. 180 The true cure..consists in the..Eduction of..Phlegm.
3. The action of drawing forth, eliciting, or developing from a state of latent, rudimentary, or potential existence; the action of educing (principles, results of calculation) from the data. Also concr. = educt.
1655D. Capel Tentation 78 But the work [of sin] must begin at the inward eductions and motions of the will. 1677Hale Prim. Orig. Man. iv. ii. 295 This eduction..of the Light should begin and be continued..for the first three Days of the World. 1678Phil. Trans. XII. 938 The most ancient Atheistick Hypothesis was the Eduction of all things..out of Matter. 1686Goad Celest. Bodies i. ix. 35 The Power of Matter, and Eduction therefrom, are meer Words. c1840Sir W. Hamilton Logic App. (1866) II. 257 The logicians have..limited reasoning..to a mediate eduction of one proposition out of the correlation of two others. 1865Masson Rec. Brit. Philos. 70 [Sensible objects] are not the actual existences out of us, but only..eductions by our physiology out of a ‘something’.
4. The bringing on or occasioning (an event). Cf. educe v. 4. rare.
a1806K. White Rem. (1811) II. 280 We see..men sedulously employed in the eduction of their own ruin.
5. Steam-engine.
a. The exit of waste steam from the cylinder either to the condenser or into the atmosphere; chiefly attrib., as in eduction-pipe, eduction-side, eduction-steam, eduction-valve; but now almost entirely superseded by exhaust.
b. Short for eduction-valve.
1782Watt Specif. of Patent No. 1321 The steam rushes into the eduction-pipe. 1829R. Stuart Anecd. Steam Engines II. 374 g.g., Exhausting or eduction valves. 1835Sir J. Ross N.-W. Pass. ii. 14 Having led the steam from the eduction pipe. 1839R. S. Robinson Naut. Steam Eng. 102 The steam will be cut off..but the eduction will remain open. 1841Scott Russell Steam Engine 201 The eduction valves, ports, and passages by which the steam enters the condenser. 1859W. Rankine Steam Eng. (1861) 486 An eduction valve..to let the steam escape to the condenser. |