Definition
noun
The blackening of the lung tissue, especially, as caused by coal pneumoconiosis.
Supplement
The blackening of the lungs can be caused by the deposition of carbon or coal dust particles as a result of the continued inhalation of coal dust mine or other black particles.
Word origin: Greek pneumon, lung + –melanosis, becoming black.
Variant: pneumonomelanosis.
Synonyms: lung melanosis.
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