Wordnet 3.0
NOUN (1)
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;
[syn: arsenic, As, atomic number 33]
WordNet (r) 3.0 (2006):
atomic number 33
n 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 [syn: arsenic, As, atomic
number 33]