Pronunciation: (gru-vim'i-tur), [key]
1. an instrument for measuring the specific gravity of a solid or liquid.
2. Also called gravity meter. an instrument for measuring variations in the gravitational field of the earth by detecting differences in weight of an object of constant mass at different points on the earth's surface.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.