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barometer

/bəˈɹɒm.ɪ.tə(ɹ)/ noun

In Latin: baroscopium Coined: 1665, by Robert Boyle Wiktionary

noun Definition from Wiktionary (CC BY-SA). Pronunciation from Wiktionary, via Kaikki.org. More about barometer at Wordnik → Where our words come from →

  1. An instrument for measuring atmospheric pressure.
  2. Anything used as a gauge or indicator.

Origin

From baro- + -meter. Coined in 1665 by Robert Boyle as a name for the instrument invented by Torricelli some 20 years earlier; soon thereafter borrowed from English into various languages.

From Wiktionary, via Kaikki.org (CC BY-SA)