barometrically

barometer

[buh-rom-i-ter]
noun
1.
Meteorology. any instrument that measures atmospheric pressure. Compare aneroid barometer, mercury barometer.
2.
anything that indicates changes.

Origin:
1655–65; baro- + -meter

barometric [bar-uh-me-trik] , barometrical, adjective
barometrically, adverb
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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Collins
World English Dictionary
barometer (bəˈrɒmɪtə)
 
n
1.  an instrument for measuring atmospheric pressure, usually to determine altitude or weather changes
2.  anything that shows change or impending change: the barometer of social change
 
barometric
 
adj
 
baro'metrical
 
adj
 
baro'metrically
 
adv
 
ba'rometry
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
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Etymonline
Word Origin & History

barometer
1660s, from Gk. baros "weight" (from barys "heavy;" see grave (adj.)) + metron "measure" (see meter (2)). Probably coined (and certainly popularized) by English scientist Robert Boyle (1627-1691).
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Science Dictionary
barometer   (bə-rŏm'ĭ-tər)  Pronunciation Key 
An instrument for measuring atmospheric pressure. Barometers are used in determining height above sea level and in forecasting the weather. The two primary types of barometers are the aneroid and the mercury barometer.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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American Heritage
Cultural Dictionary

barometer definition


An instrument that measures atmospheric pressure.

Note: In general, when the barometer falls in response to a drop in pressure, bad weather is approaching; when the barometer rises because of an increase in pressure, good weather will follow.
The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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