noun
reversible engine
Technical term in thermodynamics and engineering for an ideal engine that can operate in reverse, returning to its initial state without energy loss.
可逆機関は理論上の理想的な熱機関である。
A reversible engine is a theoretically ideal heat engine.
Irreversible engine; contrasts with 可逆機関 by involving energy dissipation and inability to return to the initial state.
Compound of 可逆 (reversible) and 機関 (engine, mechanism). The term is a direct translation of the English 'reversible engine' used in thermodynamics.