/ Thesaurus / M Synonyms of meitnerium Find synonyms for: Noun1. meitnerium, Mt, element 109, atomic number 109, chemical element, elementusage: a radioactive transuranic elementWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: abominable Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language