coalification

noun coal·i·fi·ca·tion \ ˌkō-lə-fə-ˈkā-shən \

Definition of coalification

: a process in which vegetable matter becomes converted into coal of increasingly higher rank with anthracite as the final product

coalify

play \ˈkō-lə-ˌfī\ transitive verb

First Known Use of coalification

1901

in the meaning defined above

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