thermointegrator

Any device for assessing the effective warmth or coldness of an environment as it might be experienced by a living organism, taking into account radiation and convection as well as conduction. Conceived of as a thermal model of an organism, the device usually consists of a standard object ( e.g., sphere, cylinder), the surface temperature of which is measured while it is being heated internally at a standard rate.

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ther·mo·in·te·gra·tor (thur″mo-inґtə-gra″tər) an apparatus for recording environmental warmth.