ETYM Cf. French développement.
In the social sciences, the acquisition by a society of industrial techniques and technology; hence the common classification of the “developed” nations of the First and Second worlds and the poorer, “developing” or “underdeveloped” nations of the Third World. The assumption that development in the sense of industrialization is inherently good has been increasingly questioned since the 1960s.
Many universities today have academic departments of development studies that address the theoretical questions involved in proposing practical solutions to the problems of development in the Third World.In biology, the process whereby a living thing transforms itself from a single cell into a vastly complicated multicellular organism, with structures, such as limbs, and functions, such as respiration, all able to work correctly in relation to each other. Most of the details of this process remain unknown, although some of the central features are becoming understood.
Apart from the sex cells (gametes), each cell within an organism contains exactly the same genetic code. Whether a cell develops into a liver cell or a brain cell depends therefore not on which genes it contains, but on which genes are allowed to be expressed. The development of forms and patterns within an organism, and the production of different, highly specialized cells, is a problem of control, with genes being turned on and off according to the stage of development reached by the organism.1. A process in which something passes by degrees to a more advanced or mature stage; SYN. evolution.
2. A recent event that has some relevance for the present situation.
3. A state in which things are improving; the result of developing.
4. Act of improving by expanding or enlarging or refining.
5. Processing a photosensitive material in order to make an image visible; SYN. developing.
6. A district that has been developed to serve some purpose. + prikaži više

The act of classifying and providing an index in order to make items easier to retrieve.