manometer

1. n. An instrument for measuring the tension or elastic force of gases, steam, etc., constructed usually on the principle of allowing the gas to exert its elastic force in raising a column of mercury in an open tube, or in compressing a portion of air or other gas in a closed tube with mercury or other liquid intervening, or in bending a metallic or other spring so as to set in motion an index; a pressure gauge. See Pressure, and Illust. of Air pump. Source: opted

2. n. a pressure gauge for comparing pressures of a gas Source: wordnet

3. An instrument for measuring the tension or elastic force of gases, steam, etc., constructed usually on the principle of allowing the gas to exert its elastic force in raising a column of mercury in an open tube, or in compressing a portion of air or other gas in a closed tube with mercury or other liquid intervening, or in bending a metallic or other spring so as to set in motion an index; a pressure gauge. See Pressure, and Illust. of Air pump. Source: webster

4. An instrument for measuring the tension or elastic force ofgases, steam, etc., constructed usually on the principle of allowingthe gas to exert its elastic force in raising a column of mercury inan open tube, or in compressing a portion of air or other gas in aclosed tube with mercury or other liquid intervening, or in bending ametallic or other spring so as to set in motion an index; a pressuregauge. See Pressure, and Illust. of Air pump. Source: adambom

5. n. a pressure gauge for comparing pressures of a gas Source: ecdict

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