[1] : The Collaborative International Dictionary of English v.0.48

galvanometer \gal`vanom"eter\, n. galvanic + -meter: cf. f.
   galvanom`etre. elec.
   an instrument or apparatus for measuring the intensity of an
   electric current, usually by the deflection of a magnetic
   needle.
   1913 webster

   differential galvanometer. see under differental, a.

   sine galvanometer, cosine galvanometer, tangent
   galvanometer 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.
      1913 webster
see also:
differential galvanometer differental sine galvanometer cosine galvanometer tangent galvanometer 

Galvanometer >> G Words
Galvanometer, definition of term: Galvanometer
galvanometer_pag1.html

Cosine >> C Words
Cosine, definition of term: Cosine
cosine_pag1.html