runnel
- n a small stream
- If there is anything in nature more single-minded than a salmon making its way through a thousand miles of water to the precise runnel where it was born, it is the fisherman .
- Drops of water trickling down a wooded hillside swell to a runnel, a rivulet, a brook, a creek, join the great feeder streams and then the long, smooth, thousand-mile slide of .