Meaning of Precambrian In English

• 0 from or referring to the earliest period of time, between about 4,600 and 543 million years ago, from when the earth was formed until the first simple forms of life appeared:

  • Precambrian time

  • Precambrian rocks

  • The silvery Precambrian quartzite is some of Australia’s oldest exposed rock.

• 1 the earliest period of time, between about 4,600 and 543 million years ago, from when the earth was formed until the first simple forms of life appeared:

  • It was in the Precambrian when the first single-celled microbes evolved.

  • The museum's Tower of Time referred to the Precambrian as an era.