brown dwarf

noun

Definition of brown dwarf

: a celestial object that is much smaller than a normal star and has insufficient mass to sustain nuclear fusion but that is hot enough to radiate energy especially at infrared wavelengths

Examples of brown dwarf in a Sentence

Recent Examples on the Web On the opposite end of the brown dwarf mass scale lies the Accident. Jonathan O'callaghan, Wired, 8 Aug. 2021 What a brown dwarf might look like up close is also unclear. Jonathan O'callaghan, Wired, 8 Aug. 2021 What a brown dwarf might look like up close is also unclear. Jonathan O'callaghan, Wired, 8 Aug. 2021 On the opposite end of the brown dwarf mass scale lies the Accident. Jonathan O'callaghan, Wired, 8 Aug. 2021 On the opposite end of the brown dwarf mass scale lies the Accident. Quanta Magazine, 5 Aug. 2021 What a brown dwarf might look like up close is also unclear. Jonathan O'callaghan, Wired, 8 Aug. 2021 What a brown dwarf might look like up close is also unclear. Jonathan O'callaghan, Wired, 8 Aug. 2021 What a brown dwarf might look like up close is also unclear. Jonathan O'callaghan, Wired, 8 Aug. 2021

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

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First Known Use of brown dwarf

1975, in the meaning defined above

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Time Traveler for brown dwarf

Time Traveler

The first known use of brown dwarf was in 1975

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Dictionary Entries Near brown dwarf

brown duck

brown dwarf

Browne

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Statistics for brown dwarf

Last Updated

16 Dec 2021

Cite this Entry

“Brown dwarf.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/brown%20dwarf. Accessed 28 Jan. 2022.

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