The Collaborative International Dictionary of English v.0.48:
Homothermic \Ho`mo*ther"mic\, Homothermous \Ho`mo*ther"mous\, a. [Homo- + Gr. ? heat.] (Physiol.) Warm-blooded; homoiothermal; h[ae]matothermal. [1913 Webster]WordNet (r) 3.0 (2006):
homothermic adj 1: of birds and mammals; having constant and relatively high body temperature [syn: homoiothermic, homeothermic, homothermic]