Rock flour

noun

Word Frequency: 0.0

Definitions

1.nounFine-grained, silt-sized particles of rock generated by mechanical grinding of bedrock by glacial erosion or artificially.

The Daily Word NerdA new word, a puzzle, and a fun fact — free in your inbox every morning.

Free forever · unsubscribe anytime · all 14 newsletters

That email did not go through — please check it and try again.