Definitions of developing:

• noun:   processing a photosensitive material in order to make an image visible
• adjective:   relating to societies in which capital needed to industrialize is in short supply
• adjective:   gradually unfolding or growing (especially as of something latent)

  Example: "His developing social conscience"

• adjective:   making or becoming visible through or as if through the action of a chemical agent

  Example: "He watched as the developing photograph became clearer and sharper"