homoiothermal
Ho*moi`o*ther"mal, a. Etym: [Gr. thermal.] (Physiol.) Defn: Maintaining a uniform temperature; hæmatothermal; homothermic; -- applied to warm-bodied animals, because they maintain a nearly uniform temperature in spite of the great variations in the surrounding air; in distinct from the cold-blooded (poikilothermal) animals, whose body temperature follows the variations in temperature of the surrounding medium.