barometer: Meaning and Definition of

ba•rom•e•ter

Pronunciation: (bu-rom'i-tur), [key]
— n.
  1. any instrument that measures atmospheric pressure. Cf. aneroid barometer, mercury barometer.
  2. anything that indicates changes.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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