poikilothermic
/ˌpɔɪkɪləˈθɜrmɪk/
adjective
- Having a body temperature that varies with the environment; cold-blooded.
- Frogs are poikilothermic animals that rely on external heat sources.
- The aquarium's poikilothermic fish need a heater to stay active in winter.
- Scientists study poikilothermic creatures to understand how climate change affects wildlife.
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