from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun The weight of a substance that will combine with or replace one mole of hydrogen or one-half mole of oxygen. The equivalent weight is equal to the atomic weight divided by the valence.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun chemistry The
atomic weightof an elementor radicaldivided by its valence; the molecular weightof a compounddivided by its combining powerin a specific reaction.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun the atomic weight of an element that has the same combining capacity as a given weight of another element; the standard is 8 for oxygen
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