Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

  

English definition of “Precambrian”

Precambrian

adjective     /ˌpriːˈkæm.bri.ən/
from or referring to the earliest period of geological time, between about 4,600 and 543 million years ago, from when the Earth was formed until the first simple forms of life appeared: the Precambrian era/period Precambrian rocksGeology - general words the Precambrian     noun [S] the Precambrian periodGeology - general words
(Definition of Precambrian adjective from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Focus on the pronunciation of Precambrian

Translations of “Precambrian”

Word of the Day

pump iron

to lift heavy weights for exercise

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More