semiminor axis

noun
semi·​mi·​nor axis | \ ˌse-mē-ˈmī-nər- How to pronounce semiminor axis (audio) , ˌse-ˌmī-, -mi- \

Definition of semiminor axis

: one half of the minor axis of an ellipse (such as that formed by the orbit of a planet)

First Known Use of semiminor axis

1909, in the meaning defined above

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The first known use of semiminor axis was in 1909

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Cite this Entry

“Semiminor axis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/semiminor%20axis. Accessed 17 Sep. 2021.

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Britannica.com: Encyclopedia article about semiminor axis

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