Precambrian

adjective

Pre·​cam·​bri·​an (ˌ)prē-ˈkam-brē-ən How to pronounce Precambrian (audio) -ˈkām- How to pronounce Precambrian (audio)
: of, relating to, or being the earliest era of geologic history or the corresponding system of rocks that is characterized especially by the appearance of single-celled organisms and is equivalent to the Archean and Proterozoic eons see Geologic Time Table
Precambrian noun

Word History

First Known Use

1864, in the meaning defined above

Time Traveler
The first known use of Precambrian was in 1864

Dictionary Entries Near Precambrian

Cite this Entry

“Precambrian.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Precambrian. Accessed 19 Mar. 2024.

Kids Definition

Precambrian

adjective
Pre·​cam·​bri·​an (ˈ)prē-ˈkam-brē-ən How to pronounce Precambrian (audio)
: of, relating to, or being the earliest era of geological history extending to the beginning of the Phanerozoic eon about 544,000,000 years ago
also : relating to the rocks formed during this time see geologic time
Precambrian noun
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