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aneroid

aneroid

9.1
Not using liquid to measure pressure in instruments like barometers
  • adjective
  • /ˈænəˌrɔɪd/
  • Specialized
translation icon : aneroide
  • The scientist preferred using an aneroid barometer for field work because it did not rely on mercury.

Examples

  • An aneroid barometer is a reliable tool for measuring atmospheric pressure without liquid.

  • Unlike mercury barometers, aneroid instruments are safer and more portable.

  • An aneroid gauge is commonly used to measure pressure in modern machinery.

  • The aneroid barometer is easy to read.

  • I bought an aneroid altimeter for hiking.

  • The hiking kit included an aneroid altimeter that helps gauge altitude safely.

  • She used an aneroid gauge to accurately monitor the tire pressure in her car.

Compounds

aneroid barometer
  • Specialized
7.5

A tool that measures air pressure without liquid, often using a small metal box

Surface Forms

aneroid positive

Morphology

aneroid = an + eroid

Although the prefix 'an-' (not) is recognizable, the stem 'eroid' is not a standalone English word and the specific instrumental meaning ('not using liquid') is not transparently derived by most learners.

Etymology

Aneroid comes from Greek parts, with a- meaning 'not' and a part that meant 'water' or 'liquid', so it literally means 'without liquid'. That's why we call a gauge or barometer 'aneroid' when it does not use any liquid.