rill

• Substantif désignant un petit ruisseau ou un mince canal, souvent formé par l'érosion du sol.

A noun referring to a small stream or a small channel, such as one formed by soil erosion.

1. Small streamC1formal

   A very small brook or rivulet, often flowing through a narrow channel.

   ruisselet

   • A gentle rill trickled through the meadow.
   • The hikers stopped to drink from a clear rill.
   • The rill wound its way between the mossy rocks.

   Synonymesbrookbrookletrivuletrunnelstreamlet

2. Erosion channelC2formal

   A small, narrow channel or gully formed by the erosion of soil, often by running water.

   Ruisselet d'érosion

   • After the heavy rain, rills appeared across the hillside.
   • The farmer noticed a rill cutting through the field.
   • Geologists studied the rills to understand the erosion pattern.