Magnetometer
Pronunciation : Mag`net*om"e*ter
Part of Speech : n.
Etymology : [Magneto- + -meter: cf. F. magn?tom?tre.] (Physics)
Definition : Defn: An instrument for measuring the intensity of magnetic forces; also, less frequently, an instrument for determining any of the terrestrial magnetic elements, as the dip and declination.
Source : Webster's Unabridged Dictionary, 1913