Definition of macroglossia in US English:

macroglossia

noun

Medicine
  • Abnormal enlargement of the tongue.

Origin

Mid 19th century. From macro- + -glossia, probably after French macroglossie; compare microglossia.

Pronunciation

macroglossia

/ˌmakrə(ʊ)ˈɡlɒsɪə/