Rill vs. Rille — What's the Difference?

In hillslope geomorphology, a rill is a shallow channel (no more than a few tens of centimetres deep) cut into soil by the erosive action of flowing water. Similar but smaller incised channels are known as microrills; larger incised channels are known as gullies.

Rille (German for 'groove') is typically used to describe any of the long, narrow depressions in the surface of the Moon that resemble channels. The Latin term is rima, plural rimae.

A small brook; a rivulet.

A long, narrow, roughly straight channel or groove on the surface of a solar system body like a planet or moon.

Variant of rille.

Variant ofrill.

A very small brook; a streamlet; a creek, rivulet.

(planetology) A long, narrow depression that resembles a channel, found on the surface of various lunar and planetary bodies.

(planetology) rille.

One of certain narrow, crooked valleys seen, by aid of the telescope, on the surface of the moon.

To trickle, pour, or run like a small stream.

A very small brook; a streamlet.

See Rille.

To run a small stream.

A small stream

A small channel (as one formed by soil erosion)