/ Thesaurus / M Synonyms of macrodantin Find synonyms for: Noun1. nitrofurantoin, Macrodantin, antibacterial, antibacterial drug, bactericideusage: derivative of nitrofuran used as an antibacterial medicine (trade name Macrodantin) effective against a broad range of Gram-positive and Gram-negative bacteria; used to treat infections of the urinary tractWordNet 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