/ Thesaurus / P Synonyms of parallelepipedon Find synonyms for: Noun1. parallelepiped, parallelopiped, parallelepipedon, parallelopipedon, prismusage: a prism whose bases are parallelogramsWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: inutiae Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language