poikilotherm vs ectotherm

poikilotherm and ectotherm both are nouns.

Word	Noun	Adjective	Verb	Adverb
poikilotherm	Yes	No	No	No
ectotherm	Yes	No	No	No

As nouns, poikilotherm and ectotherm are synonyms defined as:

poikilotherm and ectotherm: an animal whose body temperature varies with the temperature of its surroundings; any animal except birds and mammals

poikilotherm (noun)	ectotherm (noun)
an animal whose body temperature varies with the temperature of its surroundings; any animal except birds and mammals	an animal whose body temperature varies with the temperature of its surroundings; any animal except birds and mammals