Mississippian: Meaning and Definition of

Mis•sis•sip•pi•an

1. of or pertaining to the state of Mississippi or the Mississippi River.
2. noting or pertaining to a period of the Paleozoic Era, occurring from about 345 million to 310 million years ago and characterized as the age of amphibians. See table under

1. a native or inhabitant of Mississippi.
2. the Mississippian Period or System: the former is sometimes considered an epoch of the Carboniferous Period.