D defs.my
Entry 1 sense Webster, 1913

dissipative

/(dĭs"sĭ*pā̇*tĭv)/ · dis·si·pa·tive · IPA /dˈɪsəpˌeɪtɪv/
01 a. Tending to dissipate.
  1. 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.