'Macroglossia' definitions:

Definition of 'macroglossia'

(from WordNet)
noun
A congenital disorder characterized by an abnormally large tongue; often seen in cases of Down's syndrome

Definition of 'Macroglossia'

From: GCIDE
  • Macroglossia \Mac`ro*glos"si*a\, n. [NL. See Macro-, and Glossa.] (Med.) Enlargement or hypertrophy of the tongue. [1913 Webster]