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Medical Definition of Atrophic glossitis
1. An erythematous, edematous, and painful tongue which appears smooth due to loss of the filiform and sometimes the fungiform papillae secondary to certain nutritional deficiencies, especially B-vitamin deficencies, as seen in pellagra, thiamin deficiency, and disorders such as pernicious anaemia (Hunter's or Moeller's glossitis). Synonym: bald tongue. (05 Mar 2000)