noun
from 345 million to 310 million years ago; increase of land areas; primitive ammonites; winged insects
• Syn: ↑Mississippian, ↑Missippian period, ↑Lower Carboniferous
• Instance Hypernyms: ↑period, ↑geological period
• Part Holonyms: ↑Carboniferous, ↑Carboniferous period
Useful english dictionary. 2012.