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1. An instrument for measuring atmospheric pressure, used especially in weather forecasting.
2. Something that registers or responds to fluctuations; an indicator: Opinion polls serve as a barometer of the public mood.

bar′o·met′ric (băr′ə-mĕt′rĭk), bar′o·met′ri·cal adj.
bar′o·met′ri·cal·ly adv.
ba·rom′e·try n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
References in periodicals archive ?
(41) The decline of the portrait frontispiece in late eighteenth-century novels (except when produced as part of an author's collected works) barometrically marks these broadening generic interests.
In our review, we found 15 published case series (Table 1) and studies documenting barometrically induced cerebral AGE or DCS.
Spring and pre-spring seasons in Polish climate constitute a period between barometrically unstable winter and stable summer; therefore, its bioclimatic, negative influence on the results is sound.