Aquae ductus
AQUAE DUCTUS, civil law. The name of a servitude which consists in the right to carry water by means of pipes or conduits over or through the estate of another. Dig. 8, 3, 1; Inst. 2, 3; Lalaure, Des Serv. c. 5, p. 23.
A Law Dictionary, Adapted to the Constitution and Laws of the United States. By John Bouvier. Published 1856.