/ Thesaurus / P Synonyms of pericardial cavity Find synonyms for: Noun1. pericardial cavity, pericardial space, cavity, bodily cavity, cavumusage: the space between the layers of the pericardium that contains fluid that lubricates the membrane surfaces and allows easy heart movementWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: rustic Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language