[mass noun]the chemical element of atomic number 33, a brittle steel-grey semimetal. (Symbol:
(化学元素)砷(符号:
of or relating to arsenic
(与)砷(有关)的。
【化】 (与)五价砷(有关)的。比较
"late Middle English (denoting yellow orpiment, arsenic sulphide): via Old French from Latin