designating or of the first geologic subdivision of the Carboniferous Period, characterized by the development of vast limestone deposits, an abundance of ferns, amphibians, and crinoids, and the first winged insects
noun
a person born or living in Mississippi
See Mississippian in American Heritage Dictionary 4
adjective
Of or relating to the state or residents of Mississippi or the Mississippi River.
Of or belonging to the geologic time, system of rocks, or sedimentary deposits of the fifth period of the Paleozoic Era, characterized by the submergence of extensive land areas under shallow seas. See Table at geologic time.
noun
A native or resident of Mississippi.
The Mississippian Period. Also called Lower Carboniferous.