irrigation

/ˌɪrəˈɡeɪʃən/
noun
  1. The artificial application of water to land or soil to help crops grow.
    • The ancient Egyptians developed advanced irrigation systems using the Nile River.
    • Farmers rely on irrigation during dry seasons to keep their crops healthy.
    • Drip irrigation is a water-efficient method that delivers water directly to plant roots.
  2. The process of washing out a body cavity or wound with a stream of liquid, especially for medical purposes.
    • Colonic irrigation is sometimes used as a detox treatment, though its benefits are debated.
    • After surgery, the wound required regular irrigation to prevent infection.
    • The doctor performed a nasal irrigation to clear the patient's sinuses.
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