GEOLOGICAL ERA

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 Dictionary entry overview: What does geological era mean? 

• GEOLOGICAL ERA (noun)
  The noun GEOLOGICAL ERA has 1 sense:

1. a major division of geological time; an era is usually divided into two or more periods

  Familiarity information: GEOLOGICAL ERA used as a noun is very rare.

 Dictionary entry details 

• GEOLOGICAL ERA (noun)

Sense 1

Meaning:

A major division of geological time; an era is usually divided into two or more periods

Classified under:

Nouns denoting time and temporal relations

Synonyms:

era; geological era

Hypernyms ("geological era" is a kind of...):

geologic time; geological time (the time of the physical formation and development of the earth (especially prior to human history))

Meronyms (parts of "geological era"):

geological period; period (a unit of geological time during which a system of rocks formed)

Instance hyponyms:

Age of Mammals; Cenozoic; Cenozoic era (approximately the last 63 million years)

Age of Reptiles; Mesozoic; Mesozoic era (from 230 million to 63 million years ago)

Paleozoic; Paleozoic era (from 544 million to about 230 million years ago)

Holonyms ("geological era" is a part of...):

aeon; eon (the longest division of geological time)