Source : Webster's Revised Unabridged Dictionary (1913)

Volumetric \Vol`u*met"ric\, a. [Volume + -metric.]
   Of or pertaining to the measurement of volume.

   {Volumetric analysis} (Chem.), that system of the
      quantitative analysis of solutions which employs definite
      volumes of standardized solutions of reagents, as measured
      by burettes, pipettes, etc.; also, the analysis of gases
      by volume, as by the eudiometer.

Source : WordNet®

volumetric
     adj : of or relating to measurement by volume; "volumetric
           analysis" [syn: {volumetrical}]