Synonym for arsenic trioxide ... As2O3;dissolves in water to give arsenous acid, H3AsO3; used in the treatment of skin diseases and malaria, and as a tonic; also used externally as a caustic. ... Synonym: arsenous oxide, white arsenic. ... (05 Mar 2000) ... 
Type: Term Pronunciation: ar′sen-ŭs oks′īd Synonyms: arsenic trioxide