Aneroid in a sentence as a noun

These carbs use an aneroid to move a needle valve at the base of the jet as the atmospheric pressure changes, effectively dynamically re-jetting the carb on the fly.

Aneroid in a sentence as an adjective

Early aircraft mechanical fuel injection systems contained an altitude-compensating aneroid, but I doubt early automotive models did. Many small recreational aircraft still use altitude-compensating carburetors that contain aneroids that act on needle valves to compensate for altitude.

Aneroid definitions

noun

a barometer that measures pressure without using fluids

adjective

containing no liquid or actuated without the use of liquid; "aneroid barometer"