Rille Definition

ril
noun
Any of several long, narrow trenches or valleys on the moon's surface.
Webster's New World

Other Word Forms of Rille

Noun

Singular:
rille
Plural:
rilles

Origin of Rille

  • German Rille rei- in Indo-European roots from Low German rille rei- in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

  • From the German Rille (“channel”).

    From Wiktionary

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