The word "galvanic" refers to something that is related to electricity, specifically the production of a current from a chemical reaction. Full definition
The firm uses galvanic skin response sensors to alter film content to heighten — or reduce — emotional reaction to it. (newscientist.com)
At NAIAS you will be able to discover the BMW X2 with the paint finishes in Galvanic Gold, Misano Blue and Sunset Orange — here are the first pictures: (motorshowblog.com)