/greuh vim"i teuhr/ , n.
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.
[ 1790-1800; gravimètre, equiv. to gravi- (comb. form of L gravis heavy) + -mètre -METER ]