Archaean

Definition of Archaean

 (Entry 1 of 2)

variant spelling of

archaean

noun
ar·​chae·​an | \ är-ˈkē-ən How to pronounce archaean (audio) \
plural archaeans

Definition of archaean (Entry 2 of 2)

: any of the microorganisms comprising the archaea In earlier work on the mine ecosystem, these archaeans had gone undetected.— Henry Nicholls

Other Words from Archaean

Noun

archaean adjective
archaean thermophiles archaean species

First Known Use of Archaean

Noun

1996, in the meaning defined above

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The first known use of Archaean was in 1996

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Dictionary Entries Near Archaean

archaea

Archaean

archaean

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Cite this Entry

“Archaean.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Archaean. Accessed 17 Oct. 2021.

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