| n. | 1. | One who, or that which, develops. |
| 2. | (Photog.) A chemical bath or reagent used in developing photographs. | |
| 3. | (Dyeing) A reagent used to produce an ingrain color by its action upon some substance on the fiber. | |
| 4. | a corporation or individual who finances or organizes a real estate development{5}. |
| Noun | 1. | developer - someone who develops real estate (especially someone who prepares a site for residential or commercial use) |
| 2. | developer - photographic equipment consisting of a chemical solution for developing film |
| developer - programmer |