Manometernoun
An instrument to measure pressure in a fluid, especially a double-legged liquid column gauge used to measure the difference in the pressures of two fluids.
Manometernoun
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.
Manometernoun
a pressure gauge for comparing pressures of a gas
Barometernoun
An instrument for measuring atmospheric pressure.
Barometernoun
Anything used as a gauge or indicator.
Barometernoun
An instrument for determining the weight or pressure of the atmosphere, and hence for judging of the probable changes of weather, or for ascertaining the height of any ascent.
Barometernoun
an instrument that measures atmospheric pressure
Barometernoun
an instrument measuring atmospheric pressure, used especially in forecasting the weather and determining altitude.
Barometernoun
something which reflects changes in circumstances or opinions
Barometer
A barometer is a scientific instrument that is used to measure air pressure in a certain environment. Pressure tendency can forecast short term changes in the weather.