mesophile

noun
me·​so·​phile | \ ˈmez-ə-ˌfīl How to pronounce mesophile (audio) , ˈmēz- How to pronounce mesophile (audio) , ˈmēs-, ˈmes-\
variants: also mesophil \ -​ˌfil How to pronounce mesophil (audio) \

Medical Definition of mesophile

: an organism growing at a moderate temperature (as bacteria that grow best at about the temperature of the human body) — compare psychrophile, thermophile

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