coal·i·fi·ca·tion
ˌkō-lə-fə-ˈkā-shən
: a process in which vegetable matter becomes converted into coal of increasingly higher rank with anthracite as the final product
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“Coalification.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/coalification. Accessed 7 Jul. 2026.
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