( n. )
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.
( n. )
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.
Webster's Revised Unabridged English Dictionary. Пересмотренный полный словарь английского языка Webster. 2012