A condition in which the cells lining the lower part of the esophagus undergo metaplasia (have changed or been replaced with abnormal cells) that could lead to cancer of the esophagus. The backing up of stomach contents (reflux) may irritate the esophagus and, over time, cause Barrett’s esophagus.
Dirckx, John H. 1997. Stedman’s concise medical dictionary for the health professions. 3rd ed. Baltimore, USA.