'Water table' definitions:

Definition of 'water table'

(from WordNet)
noun
Underground surface below which the ground is wholly saturated with water; "spring rains had raised the water table" [syn: water table, water level, groundwater level]

Definition of 'Water table'

From: GCIDE
  • Water table \Wa"ter ta"ble\
  • 1. (Arch.) A molding, or other projection, in the wall of a building, to throw off the water, -- generally used in the United States for the first table above the surface of the ground (see Table, n., 9), that is, for the table at the top of the foundation and the beginning of the upper wall. [1913 Webster]
  • 2. (Hydraulic Engin.) The upper limit of the portion of the ground wholly saturated with water. The water table may be within a few inches of the surface or many feet below it. [Webster 1913 Suppl.]