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.
Emphysema is a chronic lung condition that causes shortness of breath, a chronic cough, wheezing, and more. Anaphylactic shock. Anaphylactic shock is a sudden severe allergic reaction marked by breathing trouble, a tight throat, and more. Barrett esophagus. Barrett's esophagus occurs when the lining of the esophagus is damaged, usually by acid reflux.