say it: mis-i-SIP-ee-uhn
mississippian is a noun meaning "from 345 million to 310 million years ago; increase of land areas; primitive ammonites; winged insects". It carries 2 recorded senses.
from 345 million to 310 million years ago; increase of land areas; primitive ammonites; winged insects
a native or resident of Mississippi
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for mississippian come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.