Aitken nucleus

Ait·​ken nucleus | \ ˈāt-kən- How to pronounce Aitken nucleus (audio) \

Definition of Aitken nucleus

: a microscopic aerosol particle in the atmosphere that encourages condensation to gather into a droplet Using air samples collected from a 65-foot tower in a eucalyptus forest in Portugal, the researchers found an abundance of tiny aerosols, known as Aitken nuclei, that could only have been produced locally.— Henry Fountain, New York Times, 3 Nov. 1998

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First Known Use of Aitken nucleus

1906, in the meaning defined above

History and Etymology for Aitken nucleus

after John Aitken †1919 Scottish meteorologist and engineer

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The first known use of Aitken nucleus was in 1906

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Cite this Entry

“Aitken nucleus.” Dictionary, Merriam-Webster, Accessed 19 Jun. 2021.

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