rille

R1I1L1L1E1
/ɹɪl//ˈɹɪlə/

noun

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

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Scrabble 5

Meanings

nounrille (plural rilles)

plural rilles · alternative rill

  1. astronomyA long, narrow depression that resembles a channel, found on the surface of various lunar and planetary bodies.

    Synonyms: rima

Synonyms & antonyms

nounA long, narrow depression that resembles a channel, found on the surface of various lunar and planetary bodies.

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Origin

  1. GermanRille
  2. GermanRille
  3. Englishrille

Borrowed from German Rille (“channel”).

Full word history & related roots →
Cite this entry
APA

rille. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/rille

MLA

“rille.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/rille. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “rille,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/rille.

Source: rille on Wiktionary, CC BY-SA 4.0.