1. 砷;砒霜
Arsenic is a very strong poison which can kill people.

1. a very poisonous metallic element that has three allotropic forms
arsenic and arsenic compounds are used as herbicides and insecticides and various alloys
found in arsenopyrite and orpiment and realgar

Synonym: Asatomic number 33

2. a white powdered poisonous trioxide of arsenic
used in manufacturing glass and as a pesticide (rat poison) and weed killer

Synonym: arsenic trioxidearsenous anhydridearsenous oxidewhite arsenicratsbane