密西西比世 [－－－－－]

Jyutping mat6 sai1 sai1 bei2 sai3
Pinyin mì xī xī bǐ shì

Definitions (Wiktionary)
  1. name
    the Mississippian subperiod (part of the Carboniferous period, spanning from 358.9 to 323.2 million years ago)