Meaning of D'Arsonval galvanometer

D'Ar'son•val galvanom'eter

Pronunciation: (där'sun-vôl", -val"), [key]
— Elect. Elect.
  1. a galvanometer consisting of a large, fixed magnet and a light coil that swings in the magnetic field.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.