developer

n. person or thing that develops; chemical substance used in photography

Developer can refer to:A game developer, a person or business involved in game development, the process of designing and creating games. A real-estate developer, one who builds on land or changes and enhances the use of an existing building for some new purpose or to better effect.Photographic developer is a chemical, often a mixture of metol and hydroquinone, which converts the latent silver halide image in the exposed photograph material into reduced, opaque, black silver metal.A software developer, one who programs computers or designs the system to match the requirements of a systems analyst.
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Noun
1. someone who develops real estate (especially someone who prepares a site for residential or commercial use)
(hypernym) creator
(derivation) build up, develop
2. photographic equipment consisting of a chemical solution for developing film
(hypernym) photographic equipment
(hyponym) stop bath, short-stop, short-stop bath
(derivation) develop

(n.)
One who, or that which, develops.
  

(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.
  

programmer