Emergent properties

A system could have properties that derive—potentially implicitly—from the interdependence of its parts without being properties of the parts each one viewed in isolation. These properties are characterized as "emergent".

 

Bar‑Yam Y., 1997, Dynamics of Complex Systems. Addison Wesley, Reading, Massachusetts, pp. 10-12

http://necsi.org/publications/dcs/index.html

 

See also:

http://en.wikipedia.org/wiki/Emergence

http://necsi.org/guide/concepts/emergence.html