過か臭しゅう素そ酸さんMeaningsNoun1. perbromic acidKanji used過surpass something臭smelly素elementary酸acidComposed of過かsurplus-; excess-; over-; per- (chemical with more of a certain element than found in other compounds of the same constituents)Prefix臭しゅう素そbromine (Br)Noun酸さんacid; sourness; sour tasteNoun