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Meaning Of Manometer
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.