Poikilothermal

{ Poi′ki‐lo‐ther″mal (–thẽr″mal), Poi′ki‐lo‐ther″mic (–thẽr″mĭk), } a. [Gr. ποικίλοσ changeable + E. thermal, thermic.] (Physiol.) Having a varying body temperature. See Homoiothermal.