American English

Definition of barometer noun from the Oxford Advanced American Dictionary



    jump to other results
  1. 1an instrument for measuring air pressure to show when the weather will change The barometer is falling (= showing that it will probably rain).
  2. 2something that shows the changes that are happening in an economic, social or political situation Infant mortality is a reliable barometer of socioeconomic conditions.
adjective barometric pressure
See the Oxford Advanced Learner's Dictionary entry: barometer