Developing (The Twilight Zone) definition

(1) Relating to societies in which capital needed to industrialize is in short supply

(2) Gradually unfolding or growing (especially as of something latent)

"His developing social conscience"

"After the long winter they took joy in the developing warmth of spring"

(3) Making or becoming visible through or as if through the action of a chemical agent

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

(4) Processing a photosensitive material in order to make an image visible

"The development and printing of his pictures took only two hours"