详细解释:【化】 三氧化二砷; *
【医】 三氧化二砷, 白砷, *
英语解释：
名词 arsenous oxide:
a white powdered poisonous trioxide of arsenic; used in manufacturing glass and as a pesticide (rat poison) and weed killer同义词：arsenic, arsenic trioxide, arsenous anhydride, white arsenic, ratsbane