exothermic (vs. endothermic), exothermal

from The Collaborative International Dictionary of English v.0.48

energy-releasing \energy-releasing\ adj.
   1. releasing energy. [Narrower terms: {exothermic (vs.
      endothermic), exothermal}]

   Syn: exoergic.
        [WordNet 1.5]

   2. catabolic. [prenominal] {constructive-metabolic}

   Syn: destructive-metabolic(prenominal).
        [WordNet 1.5]