noun
- a small stream or brook
- a small channel or groove, especially one made by running water
Examples
- A clear runnel flowed through the meadow.
- The children followed the runnel to its source in the hills.
- Rain carved a runnel in the soft earth.
- The runnel beside the path was filled with fallen leaves.
- Water trickled down the runnel between the rocks.
- The old mill wheel was turned by a small runnel.