dark matter
noun
: nonluminous matter not yet directly detected by astronomers that is hypothesized to exist to account for various observed gravitational effects
Examples of dark matter in a Sentence
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Light dark matter can be thought of as lighter variations on WIMPs, while ultralight dark matter is made of even lighter axions.
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Lyndie Chiou, Quanta Magazine, 7 May 2024
Most of the galaxy’s mass is locked away in a dark matter halo, according to the same release, meaning that it cannot be imaged and its presence is only detected by its gravitational effects on visible matter.
—Isaac Schultz / Gizmodo, Quartz, 17 May 2024
See all Example Sentences for dark matter 
Lyndie Chiou, Quanta Magazine, 7 May 2024
Most of the galaxy’s mass is locked away in a dark matter halo, according to the same release, meaning that it cannot be imaged and its presence is only detected by its gravitational effects on visible matter.
—Isaac Schultz / Gizmodo, Quartz, 17 May 2024
See all Example Sentences for dark matter
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'dark matter.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
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“Dark matter.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/dark%20matter. Accessed 29 May. 2024.
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