thermodynamic
adj. C1 Advanced US //ˌθɝmoʊˌdaɪˈnæmɪk// UK //θˌɜːmədaɪnˈæmɪk// ther·mo·dy·nam·ic
adj. relating to the way heat moves and how it affects the energy and movement of matter.
adj. relating to the branch of physics that deals with heat and its conversion to mechanical energy.
The engine uses thermodynamic principles to convert fuel into motion.
Engineers study thermodynamic cycles to improve the efficiency of power plants and refrigeration systems.
The efficiency of a thermodynamic system is determined by the ratio of useful work output to the total heat energy input, following the laws of entropy and energy conservation.
From thermo- + dynamic.