libration point

noun

Definition of libration point

: any of five positions in the plane of a celestial system consisting of one massive body orbiting another at which the gravitational influences of the two bodies are approximately equal

First Known Use of libration point

1962, in the meaning defined above

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The first known use of libration point was in 1962

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Cite this Entry

“Libration point.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/libration%20point. Accessed 22 Oct. 2020.

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