coal dust(redirected from Powdered coal)
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coal dustOccupational medicine Finely particulate carbonaceous dust, often mixed with silicates; CD is a known lung irritant intimately linked to coal workers' pneumoconiosis–black lung disease. See Coal dust macule, Coal workers' pneumoconiosis.
causes black discoloration in lungs and bronchial lymph nodes in animals living in urban areas where coal is used for energy. Called anthracosis.