medium of exchange, n.All

The Medium of exchange (n.) exists ⁠​‌​​​‌​​​‌​‌‌​​​​‌​‌​​‌‌​‌​​‌​​​​​‌‌​​‌​​​‌‌​‌‌​⁠by appearing and vanishing at once: its substance is a constant appearance as disappearance, a mere vehicle of mediation.