What is "dissipative system"

dissipative \dis"si*pa*tive\ (d[i^]s"s[i^]*p[asl]*t[i^]v), a. Tending to dissipate.

Dissipative system (Mech.), an assumed system of matter and motions in which forces of friction and resistances of other kinds are introduced without regard to the heat or other molecular actions which they generate; -- opposed to conservative system.

A dissipative system is a thermodynamically open system which is operating out of, and often far from, thermodynamic equilibrium in an environment with which it exchanges energy and matter.

A dissipative structure is a dissipative system that has a dynamical régime that is in some sense in a reproducible steady state. This reproducible steady state may be reached by natural evolution of the system, by artifice, or by a combination of these two.