dissipative /(dĭs"sĭ*pā̇*tĭv)/

dis·si·pa·tive

dissipative

a.
  1. Tending to dissipate.

Phrases & Compounds
Dissipative system
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.