n. A barometer in which variations of atmospheric pressure are indicated by the relative bulges of a thin elastic metal disk covering a partially evacuated chamber
meteorological instrument which measures air pressure; a dry barometer as opposed to one which contains liquid such as a mercury barometer (The Surface and Aloft)
An instrument for measuring the atmospheric pressure It registers the change in the shape of an evacuated metal cell to measure variations on the atmospheric pressure The aneroid is a thin-walled metal capsule or cell, usually made of phosphor bronze or beryllium copper The scales on the glass cover measure pressure in both inches and millibars
Meteorological instrument which sailors often use to confirm the onset of bad weather Its readings, together with heavy rain, severe rolling, high winds, dark skies and a deep cloud cover, indicate the presence of a storm
An instrument built around a metal structure that bends with changing air pressure These changes are recorded on a pointer that moves back and forth across a printed scale
A device to measure air pressure that uses an aneroid, which is a sealed, flexible metal bellows with some air removed that expands and contracts with air pressure changes
an instrument for measuring atmospheric pressure in which a needle, attached to the top of an evacuated box, is deflected as changes in atmospheric pressure cause the top of the box to bend in or out