/ Thesaurus / C Synonyms of combining form Find synonyms for: Noun1. combining form, bound morpheme, bound formusage: a bound form used only in compounds; "`hemato-' is a combining form in words like `hematology'"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: foliage Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language