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| underground water; subsurface water; seepage water | |||
| groundwater | |||
| groundwater Water that occupies pores and crevices in rock and soil, below the surface and above a layer of impermeable material. It is free to move gravitationally, either downwards towards the impermeable layer or by following a gradient | |||
| ape subterane: 3 phrases in 1 subject |
| Construction | 3 |