A flow or current moving in opposition to another flow, or the state of being in opposing motion.
From counter- + flux (Latin fluxus, meaning 'flowing'). This term appears in physics and fluid dynamics literature from the 17th century onward.
Ancient philosophers called constant change 'flux,' but once scientists understood counterflux—that opposite movements exist simultaneously—they could explain tides, ocean currents, and even blood circulation.
Complete word intelligence in one call. Free tier — 50 lookups/day.