poikilothermous
/ˌpɔɪkɪləˈθɜrməs/
adjective
- Having a body temperature that changes with the environment; cold-blooded. (Less common variant of poikilothermic.)
- The biology textbook explained that most fish are poikilothermous.
- In cold weather, poikilothermous animals become slow and inactive.
- Turtles are poikilothermous reptiles that sun themselves on logs.
Antonyms