First Known Use: 1538
Dictionary
1rill
noun \ˈril\
Definition of RILL
: a very small brook
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Origin of RILL
Dutch ril or Low German rille; akin to Old English rīth rivulet
Other Geology Terms
2rill
verb
Definition of RILL
intransitive verb
: to flow like a rill
First Known Use of RILL
1610
3rill
noun \ˈril\
Definition of RILL
: any of several long narrow valleys on the moon's surface
Variants of RILL
rill or rille \ˈril, ˈri-lə\
Origin of RILL
German Rille, literally, channel made by a small stream, from Low German, rill
First Known Use: 1868
RILL[1] Defined for Kids
rill
noun \ˈril\
Definition of RILL for Kids
: a very small stream
Learn More About RILL
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