Dictionary
os•cil•lo•graph
Pronunciation: (u-sil'u-graf", -gräf"), [key]—
n. Elect.
a device for recording the wave-forms of changing currents, voltages, or any other quantity that can be translated into electric energy, as sound waves.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.