M star

noun

: a red star characterized primarily by a surface temperature of 3,000 kelvins or less

called also Type M star

Word History

First Known Use

1927, in the meaning defined above

Time Traveler
The first known use of M star was in 1927

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Dictionary Entries Near M star

MST

M star

MsTh1

See More Nearby Entries 

Cite this Entry

“M star.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/M%20star. Accessed 7 Feb. 2023.

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