ˌasəd.ˈärˌsōn noun
also ac·et·ar·sol -sȯl, -ōl
( -s )
Etymology: International Scientific Vocabulary acet- + ars- + -one or -ol
: a white powder C 8 H 10 AsNO 5 sometimes used in the treatment of amebiasis; 3-acetamido-4-hydroxy-benzene-arsonic acid