- first law of thermodynamicsphysicssee also 熱力学の第一法則【ねつりきがくのだいいちほうそく】
noun (common) (futsuumeishi)
Generated: This term refers to the fundamental principle in physics that states that energy cannot be created or destroyed, only transformed from one form to another. It is a foundational concept in thermodynamics, emphasizing conservation of energy.