aneroid
- n a barometer that measures pressure without using fluids
- a containing no liquid or actuated without the use of liquid
aneroid barometer
- Designed for high-flying fighters and bombers, the release is tripped by a timer (to be set before take-off at from one to 26 seconds), includes an aneroid barometer which opens .
- His ordinary altimeter (essentially an aneroid barometer) is not enough, for its readings vary with pressure changes due to either altitude or weather.