/ Thesaurus / C Synonyms of combining weight Find synonyms for: Noun1. equivalent, equivalent weight, combining weight, eq, atomic mass, atomic weight, relative atomic massusage: the atomic weight of an element that has the same combining capacity as a given weight of another element; the standard is 8 for oxygenWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: fresco Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language