Word: rilles
Part of speech: Noun
Syllables: rilles
Definition: Plural of rille. A long, narrow depression that resembles a channel, found on the surface of various lunar and planetary bodies.
Morphemes:
Affix: rille
Language: en
PoS: Noun
Meaning: A long, narrow depression that resembles a channel, found on the surface of various lunar and planetary bodies.
Etymology Compounds: Affix: Rille
Language: de
Decoded: Rille
Meaning: channel
Affix: -s
Language: en
PoS: Suffix
Meaning: Used to form many pluralia tantum (nouns that are almost or entirely without singular forms).