Noun
A large water wheel, turned by the action of a stream against its floats, and carrying at its circumference buckets, by which water is raised and discharged into a trough; used in Arabia, China, and elsewhere for irrigating land; a Persian wheel.
Source: Webster's dictionaryActual French losses were c. 130,000 by 1 May and the Noria system had enabled 42 divisions to be withdrawn and rested, when their casualties reached 50 percent. Source: Internet