1. An instrument for estimating the tension or pressure of a gas. ... Synonym: tonometer. ... Origin: aero-+ G. Tonos, tension, + metron, measure ... (05 Mar 2000) ... Found on http://www.encyclo.co.uk/local/20973
aerotonometer 1. An instrument for measuring the partial pressure of the gases in the blood or other liquid. 2. An instrument for estimating the tension or pressure of a gas. Found on http://www.wordinfo.info/words/index/info/view_unit/1302/