runoff
Water seeking gutters
Runoff is water that flows over land rather than soaking in—rain draining from fields, streets, or rooftops into streams and storm drains: Agricultural runoff carries fertilizers into the bay.
The word also names a second election held when no candidate wins a required majority in the first round: The two top vote-getters will face each other in a runoff.
Drainage area boundary
- streamflowRiver water's measured movement
- snowmeltLiquefied winter precipitation
- precipitationAtmospheric water deposit
- dischargeRelease of substance outward
channel · flood · erosion · silt · turbidity · sediment · deposition · headwaters
Chief in importance
- ballotVoting document
- candidatesThose seeking selection
- votingFormally registering a choice
- pollsOpinion surveys or voting sites
recount · plurality · majority · electorate · campaign · caucus · nomination · precinct
Substances enriching soil
- pesticidesChemicals destroying harmful organisms
- nitratesNitrogen-oxygen salt compounds
- phosphatesSalts of a certain acid
- herbicidesChemicals that destroy unwanted plants
manure · eutrophication · contamination · leaching · agrochemicals · nutrients · cropland · feedlot
watershed
Drainage area boundary
- streamflowRiver water's measured movement
- snowmeltLiquefied winter precipitation
- precipitationAtmospheric water deposit
discharge · channel · flood · erosion · silt · turbidity · sediment · deposition · headwaters · tributary
primary
Chief in importance
- ballotVoting document
- candidatesThose seeking selection
- votingFormally registering a choice
polls · recount · plurality · majority · electorate · campaign · caucus · nomination · precinct · constituents
fertilizers
Substances enriching soil
- pesticidesChemicals destroying harmful organisms
- nitratesNitrogen-oxygen salt compounds
- phosphatesSalts of a certain acid
herbicides · manure · eutrophication · contamination · leaching · agrochemicals · nutrients · cropland · feedlot · waterways
drainage
Liquid removal system
sewer · ditch · drainpipe · catchment · infiltration · impervious · pavement · urban · flooding · pollutants
excess
Surplus beyond need
discharge · seepage · leakage · escape · diversion · bypass · residual · remainder · leftover
- Reef Threatscoral bleaching, ocean acidification, overfishing, sedimentation, ocean warming
- environmental scienceecology, air quality, ecosystem, water quality, ecosystems
- river thingsflow, stream, current, sediment, tributary
- water flowflow, water flow, streamflow, flow rate, current
- water sourcesriver, lake, rain, well, pond
- rainwaterpuddle, puddles, droplets, droplet, drizzle
runoffprimary election
Party candidate selection vote
first round · general election · first-past-the-post · primary · opening round
runoffinfiltration
Covert entry into organization
absorption · percolation · seepage · retention · soaking
runoffretention
Continued holding or possession
containment · capture · collection · absorption · storage