/ Dictionary / Index G gradiometer: Meaning and Definition of Find definitions for: gra•di•om•e•ter Pronunciation: (grā"dē-om'i-tur), [key] — n. Physics. any instrument used to measure a gradient, as the rate of change of the geomagnetic field. Cf. gradient (def. 3a). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. gradin gradual Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language