1. A deep, ash-gray discoloration of the skin and conjunctiva resulting from chronic exposure to silver or silver salts: The term argyria is also defined as a dusky-gray or bluish discoloration of the skin and mucous membranes produced by the excessive or overuse of silver preparations.

All silver salts, if used for any length of time may produce discoloration of the skin which is the condition known as argyria.

2. Poisoning from the use of silver preparations over too long a period or its absorption during industrial processes: The argyrias result from silver compositions that can cause ghastly bluish discolorations of the skin over the entire bodies of those who experience such unprotected situations.