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1802, from French galvaniser, from galvanisme (see galvanism). Figurative sense of "excite, stimulate (as if by electricity)" first recorded 1853. Meaning "to coat with metal by means of galvanic electricity" (especially to plate iron with tin, but now typically to plate it with zinc) is from 1839.
He'll swear that in her dancing she cuts all others out,Related: Galvanized; galvanizing.
Though like a Gal that's galvanized, she throws her legs about.
[Thomas Hood, "Love has not Eyes," 1845]
Placement of a thin coat of a metal, such as zinc, over iron or steel to protect the latter from rust. Galvanized metals typically appear shiny.