Adjacent Words

pneumoconiosis definitions

	Tweet

WordNet (r) 3.0 (2005)

n
1: chronic respiratory disease caused by inhaling metallic or mineral particles [syn: pneumoconiosis, pneumonoconiosis]

Merriam Webster's

noun (plural pneumoconioses) Etymology: New Latin, from pneum- + Greek konis dust — more at incinerate Date: 1881 a disease of the lungs caused by the habitual inhalation of irritants (as mineral or metallic particles) — compare black lung, silicosis

Britannica Concise

Any lung disease caused by inhalation of organic or inorganic dusts or chemical irritants, usually over time. Some dusts (e.g., silica minerals, asbestos) produce grave reactions in small quantities. Dust collects in the pulmonary alveoli, causing inflammation that scars lung tissue, reducing its elasticity. Chest tightness and shortness of breath may progress to chronic bronchitis and emphysema. Cigarette smoking worsens many types. The most common cause of severe disease is silica (see silicosis). Asbestos (see asbestosis), beryllium, and aluminum dusts can cause worse disease, often on brief exposure. Organic causes include mold spores (see allergy) and textile fibers. Chemical irritants such as ammonia, acid, and sulfur dioxide are soon absorbed by the lung lining; their irritant effect can cause pulmonary edema, and they can lead to chronic bronchitis.

Oxford Reference Dictionary

n. a lung disease caused by inhalation of dust or small particles. Etymology: PNEUMO- + Gk konis dust