- a unit of flow equal to 1 cubic foot per second. 1 cusec is equivalent to 0.028 317 cubic metre per second
WordReference Random House Unabridged Dictionary of American English © 2016
cu•sec
(kyo̅o̅′sek),USA pronunciation n.
- Weights and Measuresa unit of flow of one cubic foot per second.
- cu(bic foot per) sec(ond) 1910–15
Collins Concise English Dictionary © HarperCollins Publishers::
cusec /ˈkjuːsɛk/ n

