Proterozoic
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See also: proterozoic
English[edit]
Etymology[edit]
Pronunciation[edit]
- (US) IPA(key): /ˌpɹoʊt(ə)ɹrəˈzoʊɪk/, /ˌpɹoʊt(ə)ɹoʊˈzoʊɪk/
- (UK) IPA(key): /ˌpɹɒt(ə)ɹəˈzəʊɪk/, /ˌpɹɒt(ə)ɹəʊˈzəʊɪk/
Audio (Southern England) (file) - Rhymes: -əʊɪk
Adjective[edit]
Proterozoic (not comparable)
Translations[edit]
of eon from 2,500 to 541 million years ago
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Proper noun[edit]
Proterozoic
- (geology) The eon from 2,500 Ma to 541.0±1.0 Ma, the beginning of the Phanerozoic, marked by the build up of oxygen in the atmosphere and the emergence of primitive multicellular life.
- Hypernym: (eon/supereon) Precambrian
- Hyponyms: Paleoproterozoic, Mesoproterozoic, Neoproterozoic
- Coordinate terms: (preceding eon) Archaean, (succeeding eon) Cambrian
Translations[edit]
eon 2,500-541 Ma
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See also[edit]
Categories:
- English terms prefixed with protero-
- English terms suffixed with -zoic
- English 5-syllable words
- English terms with IPA pronunciation
- English terms with audio links
- Rhymes:English/əʊɪk
- Rhymes:English/əʊɪk/5 syllables
- English lemmas
- English adjectives
- English uncomparable adjectives
- en:Geology
- English proper nouns
- English uncountable nouns