ˌirəˈgāshən noun
( -s )
Usage: often attributive
Etymology: Latin irrigation-, irrigatio, from irrigatus + -ion, -io, -ion
1. : the action or process of irrigating: as
a. : the artificial watering of land (as by canals, ditches, pipes, or flooding) to supply moisture for plant growth
irrigation ditches
growing crops by irrigation
also : a single watering by such means
the berries will need another irrigation if it doesn't rain soon
b. : application of a continuous stream of liquid to a part of the body for a therapeutic purpose
wound irrigation
2. : a refreshing or making fertile as if by watering