mean solar second

noun

mean so·​lar sec·​ond -ˌsō-lər-ˈsek-ənd, -ənt How to pronounce mean solar second (audio)
: an mks unit of time equal to 1/86,400 of a mean solar day

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Cite this Entry

“Mean solar second.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/mean%20solar%20second. Accessed 14 Nov. 2024.

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