Arkaikum
Indonesian
Alternative forms
- Arkaekum
Etymology
Borrowed from Modern Latin Archaicum.
Adjective
Arkaikum
- (geology) Archaean
Proper noun
Arkaikum
- (geology) The eon from 2,500 Ma to 4,000 Ma; Archaean
Synonyms
- Arkean
Hypernyms
- (eon 2,500-4,000 Ma): Prakambrium
Hyponyms
- (eon 2,500-4,000 Ma): Eoarkaikum, Paleoarkaikum, Mesoarkaikum, Neoarkaikum
Coordinate terms
- (eon 2,500-4,000 Ma): Hadaikum, Proterozoikum - eons in Precambrian