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
Keep scrolling for more
Love words? Need even more definitions?Merriam-Webster unabridged
Words at Play
- The Words of the Week - 6/18/21
- The Disparity Between 'Desperate' and 'Disparate'
- An Impartial View of 'Fair' and 'Fare'
- A Guide to Em Dashes, En Dashes, and Hyphens
Ask the Editors