irrigation has definitions from the field of medicine
[ noun ] supplying dry land with water by means of ditches etc

Used in print

(Richard I. McCosh, "Recreation Site Selection"...)

- In_addition_to its recreation interests , water is needed for drinking , sanitation , and irrigation .

Lack of rainfall and extreme temperatures may call_for the development of shade and irrigation of a site to make it useable .

Related terms

provision water

[ noun ] (medicine) cleaning a wound or body organ by flushing or washing out with water or a medicated solution