Vocab Bloom Hub

proterozoic

/ˌprɒt.ər.əˈzoʊ.ɪk/

2 entries

adjective

/ˌprɒt.ər.əˈzoʊ.ɪk/C2formalscientific
  • ruОтносящийся к геологическому эону, который длился примерно от 2,5 миллиардов до 541 миллиона лет назад, характеризующийся накоплением кислорода и появлением ранних сложных форм жизни.

Relating to the geological eon that lasted from about 2.5 billion to 541 million years ago, characterized by the buildup of oxygen and the emergence of early complex life forms.

  1. Geological eraC2formalscientific

    Relating to or denoting the later part of the Precambrian era, characterized by the first signs of simple life and the buildup of oxygen in the atmosphere.

    ruПротерозойский

    • The Proterozoic eon spans from about 2.5 billion to 541 million years ago.
    • Proterozoic rocks contain evidence of early multicellular life.
    • Geologists study Proterozoic formations to understand Earth's ancient climate.

noun

/ˌprɒt.ər.əˈzəʊ.ɪk/C2formalscientific
  • ruИмя собственное, обозначающее конкретную геологическую эру — протерозой, которая длилась примерно от 2,5 миллиардов до 541 миллиона лет назад и характеризовалась накоплением кислорода и появлением ранних сложных форм жизни.

A proper noun referring to a specific geological eon, the Proterozoic, which spans from about 2.5 billion to 541 million years ago, characterized by the buildup of oxygen and the emergence of early complex life forms.

uncountable · proper noun

  1. C2formalscientific

    The Proterozoic is a geological eon spanning from about 2.5 billion to 541 million years ago, characterized by the buildup of oxygen and the emergence of early complex life.

    ruГеологический эон

    • The Proterozoic eon saw the first significant rise in atmospheric oxygen.
    • Fossils from the Proterozoic are rare but include early multicellular organisms.
    • The Proterozoic ended with the Cambrian explosion of life.