n. (Biol.) A homoiothermal animal. Syn. -- homoiotherm. [ PJC ]
adj. (Biol.) having constant and relatively high body temperature; warm-blooded; same as homoiothermal; -- of birds and mammals. Contrasted to poikilothermal. Syn. -- homoiothermic, homoiothermal, homothermic, homothermal. [ WordNet 1.5 ]
n. (Biol.) The process or state of being homoiothermal. Syn. -- homoiothermism, homoiothermy. [ PJC ]