n. the water that flows from a particular area, especially following the spring thaw.
- 1925  Belated rains which, in the bush, had fallen on frozen ground had caused an abundant run-off.
- 1962  Lots of it will be left for cover, not primarily for game birds but because it is needed for shelter for his stock, for snow traps for moisture and to control run-off. But the wildlife will greatly benefit.