WordReference Random House Unabridged Dictionary of American English © 2026
di•glos•si•a
(dī glos′ē ə, -glô′sē ə),USA pronunciation n.
di•glos•sic
(dī glos′ik),USA pronunciation adj.
- Linguisticsthe widespread existence within a society of sharply divergent formal and informal varieties of a language each used in different social contexts or for performing different functions, as the existence of Katharevusa and Demotic in modern Greece.
- Pathologythe presence of two tongues or of a single tongue divided into two parts by a cleft.
- 1955–60; Latinization of French diglossie, equivalent. to Greek díglōss(os) speaking two languages (see diglot) + French -ie -y3