Definition of runoff in English:
1A further competition, election, race, etc., after a tie or inconclusive result.
- Well, today's Ukrainian Supreme Court decision nullifies the results of the presidential run-off election.
- He confounded all opinion polls by coming second in the presidential elections, as a result of which he entered the run-off elections against him.
- A Prada skipper sailed out to the Hauraki Gulf Tuesday morning knowing it had to win the two races on the card to survive for a sudden-death run-off Wednesday against OneWorld.
2The draining away of water (or substances carried in it) from the surface of an area of land, a building or structure, etc.
- The main cause is excess nitrogen run-off from farm fertilizers, sewage and industrial pollutants.
- But over time, fertilizer run-off from agriculture, for example, may load the lake with excess nutrients.
- This run-off carries fertile matter from soils into the pond.
2.1The water or other material that drains freely off the surface of something.
- The seeds of F. cernua disperse primarily by gravity and secondarily by surface water run-off after rare heavy rains.
- Uncontaminated surface water run-off and rainwater from roofs shall be collected separately from slurry and shall be disposed of directly to the nearest drain, ditch, soakpit or watercourse.
- Adding to the problem is extensive paving in large housing complexes, which causes fast run-off into storm water drains, which are then overloaded, causing the rivers to flood and wash down pollution.
Definition of runoff in:
- British & World English dictionary