1) Hydrometric 2) Measure 3) Measurement 4) Measuring 5) Mensuration 6) Of or relating to hydrometry 1) Hydrometric 
• (a.) Of or pertaining to measurement by weight; measured by weight.
Term used to express concentrations (by weight/volume) of all materials in measures of milligrams of substances per cubic metre of air (mgm-3).
(grav″ĭ-met´rik) pertaining to measurement by weight; performed by weight, as the gravimetric method of drug assay.
Grav'i·met'ric adjective (Chemistry) Of or pertaining to measurement by weight; measured by weight. -- 
Type: Term Pronunciation: grav′i-met′rik Definitions: 1. Relating to or determined by weight.
(total) the ratio of the mass of the water and ice in a sample to the dry mass of the sample, commonly expressed as a percentage.