wavelength waveÂ·length (wÄv'lÄngkth', -lÄngth') n. Symbol Î» The distance between one peak or crest of a wave of light, heat, or other energy and the next corresponding peak or crest.
Causes: Emphysema: The number one cause of emphysema is smoking. Other contributing factors in its development or exacerbation (increase in severity) include long-term exposure to other lung irritants, such as air pollution, chemical fumes, or dust.
Causes, Symptoms, Diagnosis, Treatment and Prevention of Emphysema. Smoking is the #1 Cause of Emphysema. Chronic Obstructive Pulmonary Disease (COPD) Emphysema is a common type of COPD in which the alveoli, or air sacs of the lungs, become damaged causing them to enlarge and burst.