Definitions

1. noun

An instrument used to measure atmospheric pressure, especially one indicating weather forecasts.

“The sudden drop in air pressure indicated by the barometer warned us of an approaching storm.”

2. noun

A measure or indicator of something’s extent or degree.

“Inflation rates serve as a barometer for the country’s economic health.”

3. verb

To serve as an indicator or measure of something.

“The company’s financial reports will barometer the state of the industry.”