Breadcrumb Home > Thesaurus > R Synonyms of rhyolite Find synonyms for: Noun 1. rhyolite, igneous rock usage: very acid volcanic rock WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of rhyolite (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Biographies: Notable Jewish Religious Leaders Current Events This Week: September 2023 Hispanic Population and the 2010 U.S. Census Preamble of the United Nations Charter The Jewish Calendar ✖ Related Content Daily Word Quiz: feral Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language