Definition of homeothermy in US English:


(also homoiothermy)


  • See homeotherm

    • ‘Similarly, because ambient temperatures decrease with altitude, the age at which homeothermy is attained might be expected to occur earlier in this species than in those of the same size in more favorable environments.’
    • ‘Endothermic homeothermy, or ‘warmbloodedness,’ is one of the major evolutionary developments of vertebrates, and among the most significant features that distinguish existing birds and mammals from reptiles, amphibians and fish.’
    • ‘Larger offspring might also maintain homeothermy better than smaller individuals because they possess better motor skills, a lower surface-area-to-volume ratio, and have greater tolerance for extreme low temperatures.’
    • ‘The advantages of endothermic homeothermy are seen in the wide range of habitats occupied by mammals, wider than for any other group of animals of similar diversity.’
    • ‘In part because of their high metabolic rates (associated with homeothermy and endothermy), mammals often play an ecological role that seems disproportionately large compared to their numerical abundance.’
    • ‘Most proponents of the insulation theory agree that the evolution of homoiothermy predated the evolution of avian flight and that the origin of avian flight was from an elevated site [i.e., tree-down] rather than from the ground-up.’