Last Updated
：2025/11/20
runoff
Noun
countable
uncountable
Japanese Meaning
降雨や灌漑により生じた水分で、地中に浸透せず蒸発もしないため、地表を流れ出る水。また、その流出水に含まれる溶解した化学物質など。
Sense（1）
Sense（3）
（ plural ）
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That portion of precipitation or irrigation on an area which does not infiltrate or evaporate, but instead is discharged from the area. / Dissolved chemicals, etc, included in such water.
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runoff
Heavy runoff after the storm carried pesticides from the fields into the river.
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Heavy runoff after the storm carried pesticides from the fields into the river.
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