noun. a white crystalline salt (KBr) used as a sedative and in photography.
noun. ['pəˈtæsiːəm'] a light soft silver-white metallic element of the alkali metal group; oxidizes rapidly in air and reacts violently with water; is abundant in nature in combined forms occurring in sea water and in carnallite and kainite and sylvite.
noun. ['ˈbroʊˌmaɪd'] a trite or obvious remark.