| Subject | English | Japanese |
| gen. | non-point source pollution | 面源汚染 |
| gen. | non-point source pollution | ノンポイント汚染 |
| gen. | non-point source pollution | 非点源汚染 |
| phys. | point source of light | 点光源 (ten-kōgen) |
| gen. | point source pollution | 点源汚染 |
| tech. | uniform point source of light | 均等点光源 (きんとうてんこうげん) |