Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun An instrument used to detect, measure, and determine the direction of small electric currents by means of mechanical effects produced by a current-carrying coil in a magnetic field.

from The Century Dictionary.

  • noun An instrument for detecting the existence and determining the strength and direction of an electric current.

from the GNU version of the Collaborative International Dictionary of English.

  • noun (Elec.) An instrument or apparatus for measuring the intensity of an electric current, usually by the deflection of a magnetic needle.
  • noun See under Differental, a.
  • noun (Elec.) 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.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun physics A device used to indicate the presence and direction of a small electric current, especially used to detect a null or balanced condition in a bridge circuit.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun meter for detecting or comparing or measuring small electric currents

Etymologies

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