[uh-sil-uh-graf, -grahf]
noun Electricity.
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.

1870–75; oscill(ate) + -o- + -graph

oscillographic [uh-sil-uh-graf-ik] , adjective
oscillography [os-uh-log-ruh-fee] , noun
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World English Dictionary
oscillograph (ɒˈsɪləˌɡrɑːf, -ˌɡræf)
a device for producing a graphical record of the variation of an oscillating quantity, such as an electric current

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

oscillograph os·cil·lo·graph (ə-sĭl'ə-grāf')
A device that records oscillations, as of an electric current and voltage.

os·cil'lo·graph'ic adj.
os'cil·log'ra·phy (ŏs'ə-lŏg'rə-fē) n.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Encyclopedia Britannica


instrument for indicating and recording time-varying electrical quantities, such as current and voltage. The two basic forms of the instrument in common use are the electromagnetic oscillograph and the cathode-ray oscillograph; the latter is also known as a cathode-ray oscilloscope (q.v.), which, strictly speaking, is purely an indicating instrument, while the oscillograph can make permanent records.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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Example sentences
Each oscillograph trace represents one pulse of a consecutive series received after a round trip to the moon.
Wave celerities and shape of the wave fronts were determined from the downstream pressure transducer oscillograph records.
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