Siltstone

noun

Word Frequency: 0.3

Definitions

1.nounA sedimentary rock whose composition is intermediate in grain size between the coarser sandstone and the finer mudstone.

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.