irrigation

The act of watering or moistening; the covering of anything with water or other liquid for the purpose of making or keeping it moist, as in local medical treatment; especially, the distribution of water over the surface of land to promote the growth of plants.

The act or process of irrigating, or the state of being irrigated; especially, the operation of causing water to flow over lands, for nourishing plants.

The act or process of irrigating, or the state of being irrigated; especially, the operation of causing water to flow over lands, for nourishing plants.

supplying dry land with water by means of ditches etc

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