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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.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.exothermal - (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
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References in periodicals archive ?
The energy of the exothermal reaction was determined by DSC and measured to be 0.6 J/g.
Samples weighting 15mg ([+ or -] 2mg) are taken from each surface and OIT is determined by drawing a tangent to the steepest portion of exothermal curve in agreement with EN 728 AFNOR Norm at 200[degrees]C in an oxygen flow of 50 mL [min.sup.-1] [+ or -] 10%.
Figure 7 shows the DSC result for the BHPPd materials, a broad exothermal peak was detected at approximately 550 K.
Conversely, gas adsorption by coal is essentially the interaction between the molecular structure of coal and gas molecules, which is normally an exothermal process.
In addition, since the cladding oxidation is an exothermal reaction, fuel heat-up is accelerated once the cladding reaches a certain elevated temperature.
This hydration is an exothermal reaction, which means it generate heat and results in temperature rise during concrete curing.
The positive values for the adsorption process and negative values for the desorption process are due to the exothermal and endothermal natures, respectively.
We have been looking at a metal matrix composite, where you reinforce the aluminium alloy with particles such as silicon carbide, to give it strength, rigidity, and a bit of exothermal resistance.
The seed preemulsion heat was 70[degrees]C with addition of 50% of the initiator, and when the insulation material is blue and the peak exothermal occurred, the temperature raised to 80[degrees] C.
Changing of these parameters affect the height and location of the main exothermal peak, the shape and depth of subsequent endoeffect, as well as the ratio between the heights of the aforesaid extrema.