English Explanatory Dictionary

Proterozoic

English dictionary entry

Meanings

adj
  1. Of or relating to the geologic eon from 2,500 Ma to 541.0±1.0 Ma.
name
  1. 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.
adj
  1. Alternative form of Proterozoic.

Pronunciation

/ˌpɹoʊt(ə)ɹrəˈzoʊɪk/ /ˌpɹoʊt(ə)ɹoʊˈzoʊɪk/ /ˌpɹɒt(ə)ɹəˈzəʊɪk/ /ˌpɹɒt(ə)ɹəʊˈzəʊɪk/ LL-Q1860 (eng)-Vealhurl-Proterozoic.wav

Word forms

Proterozoic

Etymology

From protero- + -zoic.

This entry uses open data from Wiktionary (CC BY-SA/GFDL). Word forms are used for search and are not indexed as separate pages.
Back to search All on P Russian dictionary Dahl dictionary