rill

1
[ ril ]
/ rɪl /
|

noun

a small rivulet or brook.

Origin of rill

1
1530–40; < Dutch or Low German; compare Frisian ril

Definition for rills (2 of 2)

rill

2

or rille

[ ril ]
/ rɪl /

noun Astronomy.

any of certain long, narrow, straight or sinuous trenches or valleys observed on the surface of the moon.

Origin of rill

2
1885–90; < German Rille; see rill1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for rills

British Dictionary definitions for rills

rill

/ (rɪl) /

noun

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 for rill

C15: from Low German rille; related to Dutch ril
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012