Ho*moi`o*ther"mal (?), a. [Gr. ? like
+ E. thermal.] (Physiol.) 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.