Aus·tro·a·si·at·ic also Aus·tro-A·si·at·ic 
(ô′strō-ā′zhē-ătĭk, -shē-, -zē-)
(ô′strō-ā′zhē-ătĭk, -shē-, -zē-)n.
A family of languages of southeast Asia once dominant in northeast India and Indochina, including Mon-Khmer and Munda.
Aus′tro·a′si·atic adj.