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 The working assumption is that dark matter consists of nonluminous elementary particles, and that dark energy is the energy of space itself. Quanta Magazine, 23 Feb. 2022 All this points to the existence of a great, nonluminous, unseen mass. Ryan Bradley, Popular Science, 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, 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

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The first known use of nonluminous was in 1825

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Cite this Entry

“Nonluminous.” Dictionary, Merriam-Webster, Accessed 7 Jul. 2022.

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