- 1
(noun) a major division of geological time; an era is usually divided into two or more periods
syn. era
WordNet 3.1
geological era
dʒɪəˈlɔdʒɪkəl ˈiərə2 senses · 75 ms
(noun) a major division of geological time; an era is usually divided into two or more periods
syn. era
WordNet 3.1