en aquifer (n, object)
― IsA ⟶
Weight: 2.0
en geological formation (n, geology) Source: Open Multilingual WordNet
en aquifer (n)
― IsA ⟶
Weight: 1.0
en layer (n) Source: OpenCyc 2012
en aquifer (n)
― IsA ⟶
Weight: 1.0
en underground (n) Source: OpenCyc 2012