subsurfaces

/ˈsʌbˌsɜrfəsɪz/
noun
  1. Layers or areas beneath the surface of something, especially the ground or water.
    • Oil companies map subsurfaces to locate potential drilling sites.
    • The construction crew drilled into the subsurfaces to test the soil stability.
    • Geologists study subsurfaces to find underground water sources.
Antonyms
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