sidereal second

noun

Definition of sidereal second

: the 60th part of a sidereal minute

First Known Use of sidereal second

1849, in the meaning defined above

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The first known use of sidereal second was in 1849

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Cite this Entry

“Sidereal second.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sidereal%20second. Accessed 3 Dec. 2020.

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