What does ectothermic mean?
Ectothermic refers to organisms that regulate their body temperature using external sources, such as the sun or a warm rock, rather than generating heat internally. This is in contrast to endothermic organisms, which maintain a relatively constant body temperature regardless of the environment. Ectothermic animals, such as reptiles and amphibians, often have slower metabolisms and are more susceptible to environmental changes. The term ectothermic is commonly used in biology and ecology to describe the temperature regulation strategies of different organisms.
adjective
Relating to or having a body temperature that is regulated by the environment, rather than by internal metabolic processes.
- 1. Relating to or having a body temperature that is regulated by the environment.
- 2. (Not applicable)
"Many reptiles are ectothermic, meaning their body temperature varies with the surrounding environment."
"Many reptiles are ectothermic, meaning their body temperature varies with the surrounding environment."
"Some species of fish are ectothermic, relying on the water temperature to regulate their metabolism."
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of ectothermic
The term ectothermic comes from the Greek words 'ecto-' (outside) and 'therm-' (heat). It was first used in the late 19th century to describe the temperature regulation strategies of animals.
Usage notes
Ectothermic is a formal term used in scientific and academic contexts. It is not commonly used in everyday conversation.