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Definition of aneroid barometer
aneroid barometer
Plural:aneroid barometers
aneroid barometer Lexical Profile
CEFR
C1
Grade
9
Tier
3
Usage
Rare
• noun
1
An instrument for measuring atmospheric pressure that operates without liquid, using instead a small, flexible metal box (an aneroid cell) that expands or contracts in response to changes in air pressure.
Example
"Before setting sail, the captain checked the aneroid barometer mounted on the cabin wall to see if a drop in pressure indicated an approaching storm."
• Nearby Words
Word Origin & Etymology
Coined in the mid-19th century from the French 'anéroïde' (derived from Greek 'a-' meaning 'without', 'nēros' meaning 'water', and '-oid' meaning 'form') combined with 'barometer' (from Greek 'baros' meaning 'weight' and 'metron' meaning 'measure'), denoting an instrument that measures air pressure without using liquid.
Cite this Entry
Wordmom. (2026). Definition of Aneroid barometer. In Wordmom Dictionary. Retrieved Oct 12, 2026, from https://wordmom.com/dictionary/aneroid barometer