D defs.my
Entry 4 senses Webster, 1913

Developer

/dĭv-ĕl'-əp-ẽr/ · De·vel·op·er · IPA /dɪˈvɛləpɚ/
01 n. One who, or that which, develops.
  1. 1.
    One who, or that which, develops.
  2. 2.
    A chemical bath or reagent used in developing photographs.(Photog.)
  3. 3.
    A reagent used to produce an ingrain color by its action upon some substance on the fiber.(Dyeing)
  4. 4.
    a corporation or individual who finances or organizes a real estate development{5}.