A native element; antimony metal is extracted from stibnite ore and other minerals. Used as a hardening alloy for lead, especially storage batteries and cable sheaths; also used in bearing metal, type metal, solder, collapsible tubes and foil, sheet and pipes and semiconductor technology.
Chronic obstructive pulmonary disease. Chronic obstructive pulmonary disease (COPD) is a common lung disease. Having COPD makes it hard to breathe. There are two main forms of COPD: Chronic bronchitis, which involves a long-term cough with mucus. Emphysema, which involves damage to the lungs over time.
Acute bronchitis is usually associated with a single-event viral infection such as a cold or the flu. Chronic bronchitis â a type of COPD (chronic obstructive pulmonary disorder) is characterised by a mucus-producing cough which lasts a minimum of three weeks per year for at least two years in a row.