Definition of Swollen tongue

Swollen tongue: : swelling, or enlargement, of the tongue. A swollen tongue can be a symptom of glossitis, an inflammation of the tongue that can be caused by infections, local irritation or burns, and allergic reactions. Swelling of the tongue can also result from trauma or rare diseases, such as amyloidosis.

Source: MedTerms™ Medical Dictionary
http://www.medterms.com/script/main/art.asp?articlekey=97582
Last Editorial Review: 6/14/2012