[ nok-tuh-loo-suhnt ]
/ ˌnɒk təˈlu sənt /
(of high-altitude clouds) visible during the short night of the summer.
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OTHER WORDS FROM noctilucentnoc·ti·lu·cence, noun
Words nearby noctilucent
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
British Dictionary definitions for noctilucent
/ (ˌnɒktɪˈluːsənt) /
shining at night, usu. of very thin high altitude clouds observable in the summer twilight sky
Derived forms of noctilucentnoctilucence, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Scientific definitions for noctilucent
[ nŏk′tə-lōō′sənt ]
Luminous at night. The term is used especially to describe certain high atmospheric cloud formations visible during summer nights at high latitudes.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.