| 释义 |
electrodynamic, a.|ɪˌlɛktrəʊdaɪˈnæmɪk|
[f. electro- + dynamic; cf. hydrodynamic.]
Pertaining to the force excited by one magnetic current upon another. Also, of a loudspeaker, microphone, etc.: = moving-coil (loudspeaker, microphone). Hence eˌlectrodyˈnamical a., eˌlectrodyˈnamics, the dynamics of electricity; the science of the mutual influence of electric currents. eˌlectroˈdynamism [see dynamism] = electrodynamics. eˌlectro-dynaˈmometer [see dynamometer], an instrument for measuring electrodynamic force.
1827H. Davy in Phil. Mag. I. 197 What may be called the electro-dynamic relations. 1832Nat. Phil. II. Electro-Magnet xii. §291. 90 (Usef. Knowl. Soc.) An electro-dynamic ring. 1881Sir W. Armstrong in Nature No. 619. 451 Electrodynamic machine. 1934Discovery Oct. 301/2 Electro-dynamic sound producer. 1940Chambers's Techn. Dict. 287/1 Electrodynamic loudspeaker..electrodynamic microphone. 1907Nature 11 Apr. 554/1 In spite of the fact that the word ‘electrodynamical’ has gone out of fashion, and that it is more proper nowadays to say ‘electromagnetic’, the old word is here retained. 1827J. Cumming Man. Electro Dynamics p. vi, A new science..treating of the effects of electricity in motion through a continued system of conductors, has been termed Electro-dynamics. 1830Sir J. Herschel Stud. Nat. Phil. 324 Theory..developed by M. Ampere, under the name of Electro⁓dynamics. 1870R. Ferguson Electr. 171 Electrodynamics treats of the mutual attractions and repulsions of currents on currents, and currents on magnets. 1876Catal. Sci. App. S. Kens. 200 Electro-dynamometer, for measuring electric currents which are constantly being reversed in direction. |