[ buh-rom-i-ter ]
/ bəˈrɒm ɪ tər /


Meteorology. any instrument that measures atmospheric pressure.Compare aneroid barometer, mercury barometer.
anything that indicates changes.

Nearby words

  1. barographic,
  2. baroja,
  3. baroja y nessi,
  4. baroja y nessi, pío,
  5. barolo,
  6. barometric,
  7. barometric error,
  8. barometric pressure,
  9. barometrograph,
  10. barometry

Origin of barometer

First recorded in 1655–65; baro- + -meter

Related formsbar·o·met·ric [bar-uh-me-trik] /ˌbær əˈmɛ trɪk/, bar·o·met·ri·cal, adjectivebar·o·met·ri·cal·ly, adverb Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for barometer

British Dictionary definitions for barometer


/ (bəˈrɒmɪtə) /


an instrument for measuring atmospheric pressure, usually to determine altitude or weather changes
anything that shows change or impending changethe barometer of social change
Derived Formsbarometric (ˌbærəˈmɛtrɪk) or barometrical, adjectivebarometrically, adverbbarometry, noun

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for barometer



1660s, from Greek baros "weight" (from barys "heavy;" see grave (adj.)) + -meter. Probably coined (and certainly popularized) by English scientist Robert Boyle (1627-1691).

Online Etymology Dictionary, © 2010 Douglas Harper

Science definitions for barometer


[ bə-rŏmĭ-tər ]

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 © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Culture definitions for barometer


An instrument that measures atmospheric pressure.


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 New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.