[ 'α:s(ə)nɪk ]
■ noun the chemical element of atomic number 33, a brittle steel-grey semimetal with many highly poisonous compounds. (Symbol: As )
Derivatives
~al adjective
Origin
ME (in sense 'orpiment'): via OFr. from L. ~um , from Gk arsenikon , from Arab. al-zarnīḵ .