arsenic has definitions from the field of chemistry
1
[ noun ] (chemistry) a white powdered poisonous trioxide of arsenic; used in manufacturing glass and as a pesticide and weed killer

Used in print

(Jack Kaplan, "The Health Machine Menace: Therapy by...)

And there was the case of Tom_Hepker , a machinist , who was referred by a friend to a health machine quack who treated him with a so-called diagnostic machine for what Doctor_Fraud said was a system full of arsenic and strychnine .

Related terms

trioxide

2
[ noun ] (chemistry) 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

Synonyms

atomic_number_33 As

*