/ Thesaurus / H Synonyms of hydrolith Find synonyms for: Noun1. calcium hydride, hydrolith, hydrideusage: a saltlike binary compound (CaH2) used as a reducing agent and source of hydrogenWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: hinder Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language