diglossic


di·glos·si·a

D0220850 (dī-glô′sē-ə, -glŏs′ē-ə)n. The use of two markedly different varieties of a language in different social situations, such as a formal variety at work and an informal variety at home.
[From Greek diglōssos, speaking two languages : di-, two; see di-1 + glōssa, tongue, language.]
di·glos′sic adj.

diglossic

(daɪˈɡlɒsɪk) adj (Linguistics) (of a language) characterized by diglossia