Treated, mixed or reacted with arsenic or an arsenate

(mineralogy) A monoclinic-prismatic honey yellow mineral containing arsenic, hydrogen, iron, lead, oxygen, and zinc.

plural of arsehead

(UK, vulgar, derogatory, slang) An idiotic or undesirable person.

(British) Alternative form of ass-licker

plural of arselicker

(UK, vulgar, slang) drunk

An arsenical that is a proposed chemotherapeutic agent against filaria and trichomonas.

Alternative form of arseling

(UK dialectal, especially Scotland, East Anglia) Backwards.