n.
- An instrument for measuring atmospheric pressure, used especially in weather forecasting.
- Something that registers or responds to fluctuations; an indicator: Opinion polls serve as a barometer of the public mood.
barometrically bar'o·met'ri·cal·ly adv.
barometry ba·rom'e·try n.
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.