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[2x]
: MÜ Mä Mæ Mé Mê Mö Mœ M- M. M1 M2 M3 M< Ma Mb Mc Md Me Mf Mg Mh Mi Mk Ml Mm Mn Mo Mp Mr Ms Mt Mu Mv Mw Mx My
motograph
CIDE DICTIONARY
motograph, n. [L. movere, motum, to move + -graph.].
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. [Webster 1913 Suppl.]
For further exploring for "motograph" in Webster Dictionary Online
