- a small rivulet or brook.
Origin of rill1
- any of certain long, narrow, straight or sinuous trenches or valleys observed on the surface of the moon.
Origin of rill2
Examples from the Web for rills
There is a large fountain of these running in ten thousand rills.The Martins Of Cro' Martin, Vol. I (of II)
Charles James Lever
When the rain ceases, the rills, brooks, and creeks run dry.
Where are the shadows of the solemn hills, And the fresh music of the summer rills?Poems
Frances Anne Butler
The rills which drain the eastern slope carry much of this broken stuff into a small arroyo that winds to the left of the mesilla.
Many of the rills were artificial, leading from one rice field to another.Mark Seaworth
William H.G. Kingston
- a brook or stream; rivulet
- a small channel or gulley, such as one formed during soil erosion
- Also: rille one of many winding cracks on the moon
Word Origin and History for rills
"small brook, rivulet," 1530s, from or related to Dutch and Frisian ril, Low German rille "groove, furrow, running stream," probably from Proto-Germanic *ril- (cf. Old English rið, riþe "brook, stream," which survives only in dialects), a diminutive form from PIE root *reie- "to run, flow" (see Rhine).