Webster’s Revised Unabridged Dictionary · 1913
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’s Revised Unabridged Dictionary · 1913
Va′ri·om′e·ter, n. [L. varius various + -meter.] (Elec.) An instrument for comparing magnetic forces, esp. in the earth's magnetic field.