nonluminous

adjective
non·​lu·​mi·​nous | \ ˌnän-ˈlü-mə-nəs How to pronounce nonluminous (audio) \

Definition of nonluminous

: not emitting light : not luminous The results also suggest this galaxy contains a substantial amount of nonluminous matter.— I. Peterson a nonluminous celestial body

Examples of nonluminous in a Sentence

Recent Examples on the Web All this points to the existence of a great, nonluminous, unseen mass. Ryan Bradley, Popular Science, "Glimpse the gold mine where scientists are searching for dark matter," 27 Oct. 2020 Ninety-five percent of all stuff takes mysterious, nonluminous forms dubbed dark matter and dark energy, which betray their presence in the cosmos by attracting and repulsing, respectively, the 5 percent of stuff that’s visible. Quanta Magazine, "An Astrophysicist Who Maps the Universe’s Terra Incognita," 4 Feb. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'nonluminous.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of nonluminous

1825, in the meaning defined above

Keep scrolling for more

Learn More about nonluminous

Time Traveler for nonluminous

Time Traveler

The first known use of nonluminous was in 1825

See more words from the same year

Statistics for nonluminous

Cite this Entry

“Nonluminous.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/nonluminous. Accessed 26 Feb. 2021.

Style: MLA
MLA Chicago APA Merriam-Webster

Comments on nonluminous

What made you want to look up nonluminous? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

Test Your Vocabulary

February 2021 Words of the Day Quiz

  • squirrel in winter
  • Which is a synonym of perdure?
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Typeshift

Anagram puzzles meet word search.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!