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 (ĕk′sō-thûr′mĭk) also ex·o·ther·mal (-məl)
Releasing heat: an exothermic reaction.

ex′o·ther′mi·cal·ly adv.


(ˌɛksəʊˈθɜːmɪk) or


(Chemistry) (of a chemical reaction or compound) occurring or formed with the evolution of heat. Compare endothermic, exoergic
ˌexoˈthermically, ˌexoˈthermally adv


(ˌɛk soʊˈθɜr mɪk)

also ex`o•ther′mal,

noting or pertaining to a chemical change that is accompanied by a liberation of heat (opposed to endothermic).
ex`o•ther′mi•cal•ly, adv.
ex`o•ther•mic′i•ty (-θərˈmɪs ɪ ti) n.


Releasing heat: an exothermic chemical reaction. Compare endothermic.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.exothermic - (of a chemical reaction or compound) occurring or formed with the liberation of heat
energy-releasing, exoergic - (of a nuclear reaction) occurring with evolution or releasing of energy
endothermal, endothermic, heat-absorbing - (of a chemical reaction or compound) occurring or formed with absorption of heat


[ˌɛksəʊˈθɜːmɪk] adjesotermico/a
References in periodicals archive ?
a) The lower internal volume of the extruder and higher surface to volume ratio provide more effective heat transfer to keep exothermic reactions under control.
75, and 1:1 exhibited exothermic reactions at 150[degrees]C, eqMRs of 1:2 and 1:3 showed exothermic peaks at 185[degrees]C, and an eq-MR of 1:4 presented an exothermic peak at 180[degrees]C.
Silicon Carbide reactors and heat exchangers; the perfect material for challenging chemical reactions such as fast, highly exothermic reactions, those involving reactions with equilibrium or unstable intermediates and hazardous reactions.
By comparison, the addition of a material such as SiC, which produces exothermic reactions during the oxygen blow, does not require any capital investment (Fig.
Among the topics are nonstationary theory of the thermal explosion for monomolecular exothermic reactions, the material science chemistry of electrochemical microsensors and applications for biofilm research, a green process to prepare hydrophobic and transparent carbon nanotube-based surfaces, innovations in wood science, waste as a resource for high value materials, and applying electron backscatter diffraction to shape memory alloys.
Ignition temperature is the temperature at which exothermic reactions begin.
The exothermic reactions of methacrylate materials can be uncomfortable for many patients, and the smell and taste of these materials are unpleasant as well.
Excessive thermal stabilization above 300[degrees]C, on the other hand, is reported lo cause violent exothermic reactions, results in significant weight losses and low carbon yield of the resulting carbon fibers [12, 14].