/ Thesaurus / Y Synonyms of ytterbite Find synonyms for: Noun1. gadolinite, ytterbite, mineralusage: a mineral that is a source of rare earths; consists of silicates of iron and beryllium and cerium and yttrium and erbiumWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: ontiguous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language