Definition of exothermic in English:
exothermic
adjective ˌɛksə(ʊ)ˈθəːmɪkˌɛksoʊˈθərmɪk
Chemistry 1(of a reaction or process) accompanied by the release of heat.
The opposite of endothermic (sense 1)
Example sentencesExamples
- For these exothermic processes, the solubility decreases with an increase in temperature.
- Sodium hydroxide dissolved into water is an exothermic process, ammonium nitrate dissolved in water is an endothermic process.
- The rusting of iron is an exothermic reaction and this process is used in hand warmers which are utilized in cold regions.
- Inside the mold, the liquid undergoes an exothermic chemical reaction, which forms the polyurethane polymer in the mold.
- When fireworks are ignited, the chemical compounds react with each other in an exothermic reaction - releasing energy.
- 1.1 (of a compound) formed from its constituent elements with a net release of heat.
Example sentencesExamples
- Little heat is needed in the roasting of sulfide ores because the oxidation of the sulfide ion to sulfur dioxide is exothermic.
Derivatives
adjective
Chemistry adverb
Chemistry adverb
Chemistry This is because fluorine generally reacts exothermically to form products with stable C-F bonds.
Origin
Late 19th century: from French exothermique.
Definition of exothermic in US English:
exothermic
adjectiveˌɛksoʊˈθərmɪkˌeksōˈTHərmik
Chemistry 1(of a reaction or process) accompanied by the release of heat.
The opposite of endothermic (sense 1)
Example sentencesExamples
- For these exothermic processes, the solubility decreases with an increase in temperature.
- Sodium hydroxide dissolved into water is an exothermic process, ammonium nitrate dissolved in water is an endothermic process.
- Inside the mold, the liquid undergoes an exothermic chemical reaction, which forms the polyurethane polymer in the mold.
- When fireworks are ignited, the chemical compounds react with each other in an exothermic reaction - releasing energy.
- The rusting of iron is an exothermic reaction and this process is used in hand warmers which are utilized in cold regions.
- 1.1 (of a compound) formed from its constituent elements with a net release of heat.
Example sentencesExamples
- Little heat is needed in the roasting of sulfide ores because the oxidation of the sulfide ion to sulfur dioxide is exothermic.
Origin
Late 19th century: from French exothermique.