Definitions for "Thermophilic"
Heat-loving; -- applied especially to microorganisms such as certain bacteria, fungi and algae, which grow best at temperatures above 40° C (e.g. between 50° and 60°), and in some cases at temperatures that would kill ordinary microorganisms. They are found in naturally hot locations, such as at hot springs or the thermal vents at the ocean bottom.
(Gr.--Heat loving) Heat-loving; -- applied especially to certain bacteria requiring high temperatures for normal development.
Favoring higher temperatures ranging from 113°-155°F (45°-68°C). Thermophilic microorganisms thrive when the compost pile heats up.