- any clayey rock, as mudstone or shale.
Origin of pelite
1875–80; < Greek pēl(ós) clay, earth + -ite1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- any argillaceous rock such as shale
C19: from Greek pēlos mud
- A sediment or sedimentary rock composed of fine fragments, as of clay or mud.
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