Ho*moi`o*ther"mal (?), a. [Gr. like + E. thermal.] Physiol.
Maintaining a uniform temperature; haematothermal; 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.
© Webster 1913.