outflow

UK: /ˈaʊtfləʊ/ US: (out′flō′)

WordReference Random House Unabridged Dictionary of American English © 2025

out•flow  (out′flō′), n. 

1. the act of flowing out:
   We need flood control to stem the river's outflow.
2. something that flows out:
   to measure the outflow in gallons per minute.
3. any outward movement:
   the annual outflow of tourists.

• out- + flow 1790–1800

Collins Concise English Dictionary © HarperCollins Publishers::

outflow / ˈaʊtˌfləʊ/ noun

1. anything that flows out, such as liquid, money, ideas, etc
2. the amount that flows out
3. the act or process of flowing out