1) Darkroom solution 
Stop bath is a chemical bath usually used in processing traditional black-and-white photographic films, plates, and paper used after the material has finished developing. The purpose of the stop bath is to halt the development of the film, plate, or paper by either washing off the developing chemical or neutralizing it. With the former, a simple w...
An acid solution used between the developer and the fixer. The stop bath halts development and at the same time neutralizes the alkaline developer, thus preventing it from lowering the acidity of the fixer. Generally a diluted solution of acetic acid; plain water is sometimes used as a stop bath for film development
An acid solution used between the developer and the fixer. The stop bath halts development and at the same time neutralizes the alkaline developer, thus preventing it from lowering the acidity of the fixer. Generally a diluted solution of acetic acid; plain water is sometimes used as a stop bath for film development. Darkroom material. An acid rins...
Acidic bath used between developer and fixer. Halts the development process as developer requires an alkaline environment to function.
[n] - an acid bath used to stop the action of a developer
short-stop noun an acid bath used to stop the action of a developer
an acid bath or rinse for stopping the action of a developer before fixing a negative or print. Also called