ectotherm - definition and synonyms

noun [countable] biology 

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/ˈektəʊθɜː(r)m/
singularectotherm
pluralectotherms
  1. an animal such as a fish or a reptile that cannot maintain its body temperature independently of its environment

    Ectotherms such as lizards obtain their body heat from the environment.

    This meaning is based on one submitted to the Open Dictionary from United Kingdom on 15/05/2015