( n. )
A reagent by the action of which the latent image upon a photographic plate, after exposure in the camera, or otherwise, is developed and visible.
( n. )
A reagent by the action of which the latent image upon a photographic plate, after exposure in the camera, or otherwise, is developed and visible.
Webster's Revised Unabridged English Dictionary. Пересмотренный полный словарь английского языка Webster. 2012