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glossolalia noun

  /ˌɡlɑsəˈleɪliə/ , /ˌɡlɒsəˈleɪliə/
  • Speaking a language one does not know, or speaking elaborate but apparently meaningless speech, while in a trance-like state (or, supposedly, under the influence of a deity or spirits); speaking in tongues. [from late 19th c.]
glossolalie
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