We don't have synonyms for ecotherm yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are isotherm, ectotherm and exotherm.
(n) :
Misspelling of ectotherm. [(biology) A cold-blooded animal: one, 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.]
(n) :
Misspelling of ectotherm. [(biology) A cold-blooded animal: one, 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.]