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An apparatus for measuring differences in vapor pressure.
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.
(General Physics) an instrument used to compare the vapour pressures of two liquids, usually consisting of two sealed bulbs containing the liquids, each being connected to one limb of a manometer
[C20: from tensi(on) + -meter]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014