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Related to endothermal: exothermic
en·do·ther·mic(ĕn′dō-thûr′mĭk) also en·do·ther·mal (-məl)
1. Chemistry Characterized by or causing the absorption of heat; endoergic.
2. Biology Of or relating to an organism that generates heat to maintain its body temperature, typically above the temperature of its surroundings; warm-blooded.