/ Thesaurus / R Synonyms of renal lithiasis Find synonyms for: Noun1. nephrolithiasis, renal lithiasis, lithiasisusage: the presence of kidney stones (calculi) in the kidneyWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: mongrel Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language