- a device for measuring atmospheric pressure, often specially calibrated for use as an altimeter, consisting of a box or chamber partially exhausted of air, having an elastic top and a pointer to indicate the degree of compression of the top caused by the external air.
- a device for measuring atmospheric pressure without the use of fluids. It consists of a partially evacuated metal chamber, the thin corrugated lid of which is displaced by variations in the external air pressure. This displacement is magnified by levers and made to operate a pointer
More Definitions
- LONGHANDLES (noun) Definition, Meaning & Examples
- RING-BILLED GULL (noun) Definition, Meaning & Examples
- TOG (noun) Definition, Meaning & Examples
- WORCESTERSHIRE SAUCE (noun) Definition, Meaning & Examples
- COADAPTATION (noun) Definition, Meaning & Examples
- LITTLE MEN (noun) Definition, Meaning & Examples
