| Word | Definitions | Synonyms |
|---|---|---|
| poikilothermic | (adjective) of animals except birds and mammals; having body temperature that varies with the environment | Synonyms: ectothermic, heterothermic, poikilothermous |
| poikilothermous | (adjective) of animals except birds and mammals; having body temperature that varies with the environment | Synonyms: ectothermic, heterothermic, poikilothermic |