grav·i·met·ric \|gravə|me.trik\adjective alsograv·i·met·ri·cal\-rə̇kəl\ Etymology:gravi- + -metric, -metrical 1.: of, involving, or relating to measurement by weight : measured by weight < a gravimetric assay of a drug > 2.: of or relating to variations in the gravitational field determined by means of a gravimeter • grav·i·met·ri·cal·ly\-rə̇k(ə)lē\adverb