Ondograph

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Ondograph \On"do*graph\, n. [F. onde wave, L. unda + -graph.]
     (Elec.)
     An instrument for autographically recording the wave forms of
     varying currents, esp. rapidly varying alternating currents.
     [Webster 1913 Suppl.]