Variometer

2 definitions found

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

  Variometer \Va`ri*om"e*ter\, n. [L. varius various + -meter.]
     (Elec.)
     An instrument for comparing magnetic forces, esp. in the
     earth's magnetic field.
     [Webster 1913 Suppl.]



From WordNet (r) 2.0 [wn]:

  variometer
       n : a measuring instrument for measuring variations in a
           magnetic field