| a white, granular, water-insoluble powder, AgCl, that darkens on exposure to light, produced by the reaction of silver nitrate with a chloride: used chiefly in the manufacture of photographic emulsions and in the making of antiseptic silver preparations. |
| silver chloride n. A white granular powder, AgCl, that turns dark on exposure to light and is used in photographic emulsions, photometry, and silver plating. |