ˌ ̷ ̷ ̷ ̷ˈzōlēəm noun
( -s )
Etymology: New Latin, from International Scientific Vocabulary tetrazole + New Latin -ium
: a univalent ion CH 3 N 4 + or radical CH 3 N 4 analogous to ammonium and derived from tetrazole ; also : any of various derivatives of this ion
tetrazolium salts are redox indicators — Science
— compare formazan