Definition of endothermic in English:

Share this entry


Pronunciation: /ˌɛndəʊˈθəːmɪk/


1 Chemistry (Of a reaction or process) accompanied by or requiring the absorption of heat. The opposite of exothermic.
Example sentences
  • Solar receivers absorb this concentrated solar radiation and deliver it, in the form of high-temperature heat, to a chemical reactor wherein an endothermic reaction results in the production of solar fuels.
  • A reaction which has a positive value for this is an endothermic reaction and requires heat.
  • This process is endothermic, pulling heat from its surroundings.
1.1(Of a compound) requiring a net input of heat for its formation from its constituent elements.
Example sentences
  • This element forms extremely endothermic compounds, which are in many cases explosive.
  • The highly flammable gas acetylene is an endothermic compound which can decompose extremely explosively when in its solid or liquid states or in its gaseous state under pressure.
2 Zoology (Of an animal) dependent on or capable of the internal generation of heat.
Example sentences
  • However this strategy is not feasible for endothermic herbivores with a rapid metabolic rate and having limited time available to extract energy and nutrients.
  • This bone structure similarity shows that dinosaurs were endothermic.
  • The larger an endothermic animal, the more heat it generates relative to the surface area of its body.



Example sentences
  • We suggest that the slow endothermal reaction, which is shown in the last two titration experiments, can be associated with the insertion process.

For editors and proofreaders

Line breaks: endo|ther¦mic

Share this entry

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.