METHENAMINE Scrabble 18 Words With Friends 21 Definition noun antibacterial agent (trade names Mandelamine and Urex) that is contained in many products that are used to treat urinary infections. — synonyms: Mandelamine, Urex See all 191 words you can make from METHENAMINE → 11-letter words Words starting with M Words ending with E ← Unscramble different letters