To uncover or unfold gradually; lay open by successive steps; disclose or mate known in detail, as something not apparent or withheld from notice; bring or work out in full: as, the general began to develop the plan of his operations; to develop a plot; to develop an idea.In photography, to induce the chemical changes in (the film of a plate which has been exposed in the camera or of a gelatino-bromide print) necessary to cause a latent image or picture to become visible, and, in the ease of a negative, to assume proper density to admit of reproduction by a process of printing.In biology, to cause to go through the process of natural evolution from a previous and lower stage, or from un embryonic state to a later and more complex or perfect one.In mathematics:To advance from one stage to another by a process of natural or inherent evolution; specifically, in biology, to pass from the lowest stage through others of greater maturity toward the perfect or finished state: as, the fetus develops in the womb; the seed develops into the plant.To become apparent; show itself: as, his schemes developed at length; specifically, in photography, to become visible, as a picture under the process of development. See developmentIn biology, to evolve; accomplish an evolutionary process or result.