runoff has definitions from the field of politics
[ noun ] the occurrence of surplus liquid (as water) exceeding the limit or capacity

Used in print

(Ross E. McKinney and Howard Edde, "Aerated...)

This low BOD was_due to removal of the excess suspended solids by sedimentation since the only dilution was surface runoff which was very low during this study .

Related terms

flow waste

[ noun ] (politics) a final election to resolve an earlier election that did not produce a winner

Related terms

election run_off