D defs.my
Entry 1 sense Webster, 1913

Plattdeutsch

/plät'doich"/ · Platt·deutsch · IPA /ˈplɑtˌdɔɪt͡ʃ/
01 n. The modern dialects spoken in the north of Germany, taken collectively; modern Low German. See Low German, under German.
  1. 1.
    The modern dialects spoken in the north of Germany, taken collectively; modern Low German. See Low German, under German. See: German