[ nok-tuh-loo-suhnt ]
/ ˌnɒk təˈlu sənt /
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(of high-altitude clouds) visible during the short night of the summer.
QUIZ YOURSELF ON "WAS" VS. "WERE"!
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“Was” is used for the indicative past tense of “to be,” and “were” is only used for the subjunctive past tense.
OTHER WORDS FROM noctilucentnoc·ti·lu·cence, noun
Words nearby noctilucent
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
Example sentences from the Web for noctilucent
At these altitudes, then, water vapor itself can readily cool the air enough to create noctilucent clouds.To understand how ‘night-shining’ clouds form, scientists made one themselves|Maria Temming|March 5, 2021|Science News
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.