equivalent weight


noun Chemistry.

the combining power, especially in grams (gram equivalent ), of an element or compound, equivalent to hydrogen as a standard of 1.00797 or oxygen as a standard of 8; the atomic weight divided by the valence.

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Origin of equivalent weight

First recorded in 1925–30
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for equivalent weight

equivalent weight

noun

the weight of an element or compound that will combine with or displace 8 grams of oxygen or 1.007 97 grams of hydrogenAlso called: gram equivalent
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