sb. (adj.) [f. ELECTRO- + MOTOR.]
A. sb. Originally, a metal serving as a voltaic element. In mod. use, a machine for applying electricity as a motive power. B. attrib. or adj. = ELECTROMOTIVE, as in electromotor force.
1827. Faraday, Chem. Manip., xxiii. 570. Plate or sheet zinc is a powerful electromotor.
1879. G. Prescott, Sp. Telephone, 260. During this year [1855] … Henry M. Paine, was then trying to construct a successful electromotor.
1881. Maxwell, Electr. & Magn., I. 452. No current will flow through the electromotor.
