Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

regolith

play
noun reg·o·lith \ˈre-gə-ˌlith\

Definition of regolith

  1. :  unconsolidated residual or transported material that overlies the solid rock on the earth, moon, or a planet



Origin of regolith

Greek rhēgos blanket + English -lith; akin to Greek rhezein to dye — more at raga


First Known Use: 1897


Learn More about regolith


Seen and Heard

What made you want to look up regolith? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

to manage or play awkwardly

Get Word of the Day daily email!