Mo″to‐graph (?), n. [L. movere, motum, to move + -graph.] (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. — Mo′to‐graph″ic (#), a.
Content
Rights and sources
Review source, license and attribution information for this content.
Content
Webster's Dictionary 1913
Webster's Revised Unabridged Dictionary, C. & G. Merriam Co., 1913.