English noun: geological era | |||
1. | geological era (time) a major division of geological time; an era is usually divided into two or more periods | ||
Synonyms | era | ||
Broader (hypernym) | geologic time, geological time | ||
Instance hyponym | Age of Mammals, Age of Reptiles, Cenozoic, Cenozoic era, Mesozoic, Mesozoic era, Paleozoic, Paleozoic era | ||
Part holonym | geological period, period | ||
Part meronym | aeon, eon | ||