shale
noun/ʃeɪl/
Frequency rank: #6,159 of 20,003 in the WORDED list (wordfreq data)
Meaning
a fine-grained sedimentary rock formed from compressed clay or mud, which splits easily into thin layers.
Example sentence
The geologist found layers of shale beneath the limestone formation.
Synonyms & related words
- slate
- mudstone
- claystone
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