- A permeable material
through which groundwater moves.
Source: Leet, L. Don. 1982.
Physical Geology, 6th Edition. Englewood Cliffs, NJ: Prentice-Hall
- a. A formation, a group of ions, or a part of a formation that is water
b. A stratum or zone below the surface of the Earth capable of producing
water, as from a well. AGI
c. An underground stratum that will yield water in sufficient quantity to
be of value as a source of supply. An aquifer is not a stratum that merely
contains water, for this would apply to all strata in the ground-water
area. An aquifier must yield water. See also: aquitard Carson, 1
Dictionary of Mining, Mineral, and Related Terms