poi·ki·lo·therm /pɔɪˈkiləˌθɚ/
  變溫動物
  poi·ki·lo·therm /ˈpɔɪkɪləˌθɝm, (ˌ)pɔɪˈkɪlə-/ 名詞
  變溫動物(動)
  poikilotherm
       n : an animal whose body temperature varies with the temperature
           of its surroundings; any animal except birds and mammals
           [syn: ectotherm]