motograph
(ˈməʊtəgrɑːf, -æ-)
[f. moto- + -graph.]
(In full electro-motograph.) A receiver for an electric telegraph or telephone, invented by Edison.
| 1877 Eng. Mechanic 1 June 276/1 Edison's Motograph. 1883 J. Maier Hospitalier's Mod. Appl. Electr. II. 96 A principle which was first applied by the inventor [Edison] to a telegraphic relay, under the name of electro-motograph. 1894 Dickson Edison 83 Motograph receiving and transmitting telephone. |
Hence ˈmotographic a.
| 1884 Knight Dict. Mech. Suppl., Motographic Receiver, an invention of Edison, by which the volume of sound is increased in a telephonic receiver. Called also Electro-motograph. |