1) Cold-blooded 2) Ectothermic 3) Poikilothermic 4) Poikilothermous 1) Ectothermic 2) Poikilothermic 3) Poikilothermous 
Having partial regulation of body temperature; between poikilothermic and homeothermic. ... (05 Mar 2000) ... 
Type: Term Pronunciation: het′ĕr-ō-thĕr′mik Definitions: 1. Having partial regulation of body temperature; between poikilothermic and homeothermic.
heterotherm, heterothermic, heterothermal Having a temperature which varies with that of the environment; such as, plants and cold-blooded animals.