noun
1. : any of three acids derived from arsenic pentoxide analogous to the phosphoric acids ; especially : the ortho acid obtained as the white crystalline hemihydrate H 3 AsO 4 . 1/2H 2 O
2. : arsenic pentoxide — not used scientifically
noun
1. : any of three acids derived from arsenic pentoxide analogous to the phosphoric acids ; especially : the ortho acid obtained as the white crystalline hemihydrate H 3 AsO 4 . 1/2H 2 O
2. : arsenic pentoxide — not used scientifically
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012