exothermic

from WordNet (r) 3.0 (2006)

exothermic
    adj 1: (of a chemical reaction or compound) occurring or formed
           with the liberation of heat [syn: {exothermic},
           {exothermal}, {heat-releasing}] [ant: {endothermal},
           {endothermic}, {heat-absorbing}]

from The Collaborative International Dictionary of English v.0.48

Exothermic \Ex`o*ther"mic\, a. [Pref. exo- + thermic.] (Chem.)
   Characterized by, or formed with, evolution of heat; as, an
   exothermic reaction; -- opposed to {endothermic}.
   [Webster 1913 Suppl.]

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