Definition of "galvanic"

[S]he was quivering like a galvanic battery with the suppressed force of some powerful emotion.

1871, Harriet Beecher Stowe, chapter 22, in Pink and White Tyranny

Whether the town existed during Mr. Tapley's time I have not been able to learn. . At that moment a galvanic motion had been pumped into it by the war movements of General Halleck.

1862, Anthony Trollope, chapter 6, in North America

Then he clenched his fists, and, with an agility astonishing in a man of his years, indulged in a series of galvanic little hops in front of the astounded Peter Truefitt.

1908, W. W. Jacobs, chapter 19, in Salthaven

But the main event may well end up being the performance of Brahms’s galvanic Piano Concerto No. 1, with the exhilarating British pianist Paul Lewis.

2014 April 4, Zachary Woolfe, “Music: How the Centuries Will Play Out”, in New York Times, retrieved 12 May 2014

Physicians used galvanic currents, which required only a galvanic power source, and faradic treatments, which utilized an "alternating" induction coil.

2005, Carolyn Thomas de la Pena, chapter 3, in The Body Electric: How Strange Machines Built the Modern American