Pennsylvanian
1. from 310 million to 280 million years ago; warm climate; swampy land • Syn: Pennsylvanian period, Upper Carboniferous, Upper Carboniferous period • Instance Hypernyms: period, geological period • Part Holonyms: Carboniferous, Carboniferous period 2. a native or resident of Pennsylvania • Syn: Keystone Stater • Hypernyms: American
|
|