diffluence

[ dif-loo-uh ns ]
/ ˈdɪf lu əns /

noun

the act of flowing off or away.
the act or process of dissolving into a liquid; liquefaction; deliquescence.
the rate at which fluid flow diverges along an axis perpendicular to the direction of flow at a given point.
Compare divergence.

Origin of diffluence

First recorded in 1625–35; difflu(ent) + -ence