DICT.TW Dictionary Taiwan

 Mo·to·graph n.  Elec. A device utilized in the making of a loud-speaking telephone, depending on the fact that the friction between a metallic point and a moving cylinder of moistened chalk, or a moving slip of paper, on which it rests is diminished by the passage of a current between the point and the moving surface. [obsolescent] -- Mo*to*graph*ic a.
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