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microbarograph

[mahy-kruh-bahr-uh-graf, -grahf]
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noun Meteorology.
  1. a barograph for recording minute fluctuations of atmospheric pressure.
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Origin of microbarograph

First recorded in 1900–05; micro- + barograph
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for microbarograph

microbarograph

noun
  1. a barograph that records minute changes in atmospheric pressure
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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

microbarograph in Science

microbarograph

[mīkrō-bărə-grăf′]
  1. A high-precision barograph, capable of resolving pressure differences with an accuracy of microbars.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.