instrument for detecting and measuring electric current, 1801, from galvano-, used as a combining form of galvanism + -meter. Related: Galvanometric. Galvanoscope "instrument for detecting and determining the direction of electric current" is from 1832.
galvanise
galvanism
galvanization
galvanize
galvanized
galvanometer
gam
Gamaliel
Gambia
gambit
gamble