Search Result for "poikilotherm": 
Wordnet 3.0

NOUN (1)

1. an animal whose body temperature varies with the temperature of its surroundings; any animal except birds and mammals;
[syn: poikilotherm, ectotherm]



WordNet (r) 3.0 (2006):

poikilotherm
    n 1: an animal whose body temperature varies with the
         temperature of its surroundings; any animal except birds
         and mammals [syn: poikilotherm, ectotherm]