Phrases starting with the letter: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Definition of: arsenic
(är′sə·nik) noun
1. A poisonous element (symbol As, atomic number 33), existing in several allotropic forms, commonly as a gray, very brittle, crystalline, semimetallic substance. See PERIODIC TABLE.
2. A tasteless, poisonous compound, arsenic trioxide, As2O3, used in agricultural pesticides.
3. White arsenic or arsenic trioxide, As2O3, a tasteless, poisonous compound.
—ar·sen·ic (är·sen′ik) adjective
Arsenical. [<OF <L arsenicum <Gk. arsenikon yellow orpiment]
Comment about this word, ask questions, or add new information about this topic: