Definition of endothermic in English:



  • 1Chemistry
    (of a reaction or process) accompanied by or requiring the absorption of heat.

    • ‘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.’
    • ‘Evaporation is an endothermic process, so the heat inside the refrigerator is absorbed by the coil and the refrigerator is cooled.’
    • ‘It is fully reversible with the temperature and displays in heating direction as a small endothermic event.’
    1. 1.1(of a compound) requiring a net input of heat for its formation from its constituent elements.
      ‘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.’
  • 2Zoology
    (of an animal) dependent on or capable of the internal generation of heat.

    • ‘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.’
    • ‘For example, one might think that skeletal growth rates would be higher for an endothermic animal than for an ectothermic, or cold-blooded, one.’
    • ‘According to this scenario, also like mammals and birds, they must have been endothermic, or nearly so.’