Carboniferous period

Từ điển WordNet v3.1 - WordNet Dictionary

noun

from 345 million to 280 million years ago
• Syn:
Carboniferous
• Derivationally related forms:
carboniferous (for: Carboniferous)
• Instance Hypernyms:
period, geological period
• Part Holonyms:
Paleozoic, Paleozoic era
• Part Meronyms:
Pennsylvanian, Pennsylvanian period, Upper Carboniferous, Upper Carboniferous period, Mississippian,
Missippian period, Lower Carboniferous, Lower Carboniferous period