thermal - regarding or affiliated with warmth; "thermal movements of molecules"; "thermal capacity"; "thermic energy"; "the caloric outcome of sunlight" dermal ectodermal endodermal epidermal epithermal geothermal hydrothermal intradermal isothermal mesodermal photothermal electrothermal See All Rhymes for thermal To start with sight the difference would not seem great in either https://lukaskopsd.activosblog.com/34604670/what-does-thermal-cycling-chambers-manufacturer-mean