/ Thesaurus / A Synonyms of atomic number 67 Find synonyms for: Noun1. holmium, Ho, atomic number 67, metallic element, metalusage: a trivalent metallic element of the rare earth group; occurs together with yttrium; forms highly magnetic compoundsWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: jugular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language