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runoff Definition

run·off (run′ôf′)

noun

  1. ☆ something that runs off, as rain in excess of the amount absorbed by the ground
  2. a deciding, final race, election, etc. as in case of a tie

runoff Synonyms

runoff

n.

spring runoff, drainage, surplus water; see flow, river 1, water 1.

runoff Usage Examples

Converse of object

  • reduce: Top of page Bright Ideas Kansas City residents will build 10,000 rain gardens to reduce runoff that is polluting waterways.
  • guarantee: Voting details: TAFF uses the Australian system which guarantees an automatic runoff and a majority win.

Adjective modifier

  • stormwater: This in turn will lead to the following specific benefits: Improved on-site management of stormwater runoff.
  • polluted: EPA and states believe polluted runoff causes more than one-half of remaining water quality problems.
  • glacial: In fact, millions of people living in Asia and South America rely on glacial runoff for drinking water and irrigation.
  • agricultural: Agricultural runoff contributes to nutrient levels leading to eutrophication.
  • automatic: Voting details: TAFF uses the Australian system which guarantees an automatic runoff and a majority win.
  • urban: Urban storm water runoff: a best management approach to source control.

Modifies a noun

  • accumulation: In such rivers, long term runoff accumulations remain depressed.
  • total: January runoff totals were well below average in almost all index rivers.
  • deficiency: In 2005, the drought was more notable in terms of accumulated runoff deficiencies than in relation to the minimum river flows experienced.
  • election: If no candidate receives a majority of votes, runoff elections will be held at the same election meeting.
  • generation: Many flood runoff generation models are extremely vulnerable to uncertainty in precipitation.
  • rate: Runoff rates were also very high in rivers draining the Peak District.

Noun used with modifier

  • rainwater: Landscaped terraces will reduce the rainwater runoff from the rooftop.
  • rainfall: Despite many years of research, accurate real-time modeling of the rainfall runoff process is still difficult to achieve.
  • freshwater: High water temperatures and freshwater runoff caused the coral to be bleached.
  • catchment: In most index catchments spring runoff totals exceeded the average and 12-month accumulations are in the normal range.
  • storm: Urban storm water runoff: a best management approach to source control.
  • surface: These large areas can produce considerable amounts of surface water runoff in heavy storms.