单词	nonpoint
释义	nonpoint adjective non·​point ˌnän-ˈpȯint  : being a source of pollution (such as runoff from farmland) that is not confined to a single point also : being pollution or a pollutant that does not arise from a single identifiable source Example Sentences Recent Examples on the Web But the bigger culprits are nonpoint sources, the thousands of farms where runoff from fields reaches rivers or other tributaries feeding western Lake Erie. Keith Matheny, Detroit Free Press, 13 July 2017 Word History First Known Use 1977, in the meaning defined above
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