Noun
argyria (usually uncountable, plural argyrias)
(dermatology) A condition caused by excessive exposure to chemical compounds of the element silver, or to silver dust, the most dramatic symptom of which being that the skin turns purple or purple-grey.
Synonym: argyrosis
Argyria is rare, and so far as is known, does not otherwise harm a person's health, though it is disfiguring and usually permanent. Source: Internet