Japanese edit

Kanji in this term

Grade: 2

Grade: 1
すい
Grade: 1

Grade: S
せん
Grade: 6
on’yomi
 
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Etymology edit

From 地下水 (groundwater) +‎ 汚染 (pollution, contamination).

Noun edit

()()(すい)()(せん) (chikasuiosen

  1. groundwater pollution, groundwater contamination