drainage
d ray nuhj
- n emptying something accomplished by allowing liquid to run out of it
- It had concrete floors in certain sections, ventilation, electricity and a water drainage system.
- Corps leaders like to blame Congress for their swine and when it comes to water projects, the Hill is a miraculously efficient pork factory but this agricultural drainage .
- Fruits and vegetables would grow there, using water collected by natural drainage (the land would be contoured to capture most rainwater, with excess flowing into ditches and ponds .