Är-tē'sian, a.

(-tē'zhăn), a. [Fr. Artésien, from Artois, in France, where many such wells have been made since the middle of the last century.] Pertaining to Artois (anciently called Artesium), in France.

Artésian 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 of great depth. Brande.