us·​tu·​la·​tion | \ ˌəs(h)chəˈlāshən \
plural -s

Definition of ustulation

1 : the action of burning or searing
2 : an operation formerly used in chemistry of expelling one substance from another (as sulfur from an ore) by heat in a muffle

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History and Etymology for ustulation

Medieval Latin ustulation-, ustulatio, from Latin ustulatus (past participle of ustulare to burn slightly, scorch, from assumed Latin ustulus slightly burned, from Latin ustus, past participle of urere to burn) + -ion-, -io -ion

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Cite this Entry

“Ustulation.” Dictionary, Merriam-Webster, Accessed 20 Oct. 2020.

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