/ Thesaurus / L Synonyms of leo szilard Find synonyms for: Noun1. Szilard, Leo Szilardusage: United States physicist and molecular biologist who helped develop the first atom bomb and later opposed the use of all nuclear weapons (1898-1964)WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: tenacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language