Simple Definition of shale

from our Learner's Dictionary

shale

noun

ˈʃeɪl How to pronounce shale (audio)
: a soft kind of rock that splits easily into flat pieces

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“Shale.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/shale. Accessed 23 Jun. 2026.

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