Noun mississippian has 2 senses
  1. Mississippian, Missippian period, Lower Carboniferous, Lower Carboniferous period - from 345 million to 310 million years ago; increase of land areas; primitive ammonites; winged insects
    --1 is a kind of period, geological period
    --1 is a part of Carboniferous, Carboniferous period
  2. Mississippian - a resident of Mississippi
    --2 is a kind of
    American
,
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