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(Science: physics) An instrument or apparatus for measuring the intensity of an electric current, usually by the deflection of a magnetic needle. Differential galvanometer.

(Science: physics) see Differental, sine galvanometer, Cosine galvanometer, tangent galvanometer, a galvanometer in which the sine, cosine, or tangent respectively, of the angle through which the needle is deflected, is proportional to the strength of the current passed through the instrument.

Origin: Galvanic: cf. F. Galvanometre.