Dictionary.com

noctilucent

[ nok-tuh-loo-suhnt ]
/ ˌnɒk təˈlu sənt /
Save This Word!

adjective Meteorology.
(of high-altitude clouds) visible during the short night of the summer.
QUIZ
IS THIS EIGHTH GRADE VOCAB QUIZ FEASIBLE FOR YOU?
Prove that nothing is amiss with your vocabulary skills by taking this quiz on popular eighth grade vocabulary.
Question 1 of 10
What does the word “confiscate” mean?
Meet Grammar CoachWrite or paste your essay, email, or story into Grammar Coach and get grammar helpImprove Your Writing
Meet Grammar CoachImprove Your Writing
Write or paste your essay, email, or story into Grammar Coach and get grammar help

Origin of noctilucent

First recorded in 1885–90; nocti- + lucent

OTHER WORDS FROM noctilucent

noc·ti·lu·cence, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

How to use noctilucent in a sentence

British Dictionary definitions for noctilucent

noctilucent
/ (ˌnɒktɪˈluːsənt) /

adjective
shining at night, usu. of very thin high altitude clouds observable in the summer twilight sky

Derived forms of noctilucent

noctilucence, 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

noctilucent
[ nŏk′tə-lōōsənt ]

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.
FEEDBACK