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(General Physics) an instrument for producing a graphical recording of an alternating current by measuring the charge imparted to a capacitor at different points in the cycle
[C20: from French, from onde wave + -graph]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
an instrument for recording oscillatory variations, as those in alternating currents. — ondogram, n.See also: Instruments
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