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Definition of poikilothermous in English:

poikilothermous

Pronunciation /ˌpɔɪkɪlə(ʊ)ˈθəːməs/

adjective

(also poecilothermous)
Zoology Physiology

  • Poikilothermic.

Origin

Late 19th century; earliest use found in Isaac Funk (1839–1912), publisher and reformer. From poikilo- + -thermous, after German pökilotherm, adjective (now poikilotherm).