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Related Terms:
Definitions:
Noun
                                                
                        
                            poikilotherm
                        
                                                
                        
                            ectotherm
                        
                                                
                                                    
                
                    
                    Definition: an animal whose body temperature varies with the temperature of its surroundings; any animal except birds and mammals
Definition: An animal, such as an amphibian, fish, reptile, or arthropod, which has a limited ability to regulate its body temperature and whose body temperature thus depends on the ambient temperature.