Of birds and mammals; having constant and relatively high body temperature(adjective)
WordNet. Princeton University. 2010.
Use "homoiothermic" in a sentence
"In physiology, he worked out the mechanism of the thermoregulation in homoiothermic animals."
"Bergmann suggested that they should be known as "homoiothermic" and"
"Also, from work recently done by J.O. Wakelin Barratt, it has been shown that under certain pathological conditions a warm-blooded (homoiothermic) animal may become for a time cold-blooded (poikilothermic)."