Measurement of gases; determination of the relative proportion of gases in a mixture. ... (05 Mar 2000) ... Found on http://www.encyclo.co.uk/local/20973
Gas·om'e·try noun The art or practice of measuring gases; also, the science which treats of the nature and properties of these elastic fluids. Coxe. Found on http://www.encyclo.co.uk/webster/G/11