aerotonometer

aer·o·ton·om·e·ter

(ār'ō-ton-om'ĕ-tĕr),
1. An instrument for estimating the tension or pressure of a gas.
2. Synonym(s): tonometer (2)
[aero- + G. tonos, tension, + metron, measure]

aerotonometer

An obsolete term for a tonometer, specifically used for measuring blood gases; the prefix aero- has been dropped in the working medical parlance.
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