A congenital disorder characterized by an abnormally large tongue

• Often seen in cases of Down's syndrome

Wiktionary Word definitions in Wiktionary
n. enlargement or hypertrophy of the tongue.

Wikipedia Word definitions in Wikipedia
Macroglossia is the medical term for an unusually large tongue. Severe enlargement of the tongue can cause cosmetic and functional difficulties in speaking, eating, swallowing and sleeping. Macroglossia is uncommon, and usually occurs in children. There ...

WordNet Word definitions in WordNet
n. a congenital disorder characterized by an abnormally large tongue; often seen in cases of Down's syndrome

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Macroglossia \Mac`ro*glos"si*a\, n. [NL. See Macro- , and Glossa .] (Med.) Enlargement or hypertrophy of the tongue.