(n)a well drilled through impermeable strata into strata that receive water from a higher altitude so there is pressure to force the water to flow upward
The Collaborative International Dictionary of English (GCIDE) v.0.53Collaborative International Dictionary (GCIDE)
a. [ F. artésien, fr. Artois in France, where many such wells have been made since the middle of the last century. ] Of or pertaining to Artois (anciently called Artesium), in France. [ 1913 Webster ]
Artesian wells, wells made by boring into the earth till the instrument reaches water, which, from internal pressure, flows spontaneously like a fountain. They are usually of small diameter and often of great depth. [ 1913 Webster ]
[せっぺん, seppen](n) (1) segment; slice; section; fragment; (2) { math } intercept (point where a graph crosses one of the Cartesian coordinate axes)[Add to Longdo]