spherical aberration

noun

: aberration that is caused by the spherical form of a lens or mirror and that gives different foci for central and marginal rays

Examples of spherical aberration in a Sentence

Recent Examples on the Web
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Hubble was initially hobbled by an error during the 94.5-inch primary mirror's fabrication that resulted in an optical defect known as spherical aberration, preventing the telescope from bringing starlight to a sharp focus. William Harwood, CBS News, 4 June 2024

Word History

First Known Use

1868, in the meaning defined above

Time Traveler
The first known use of spherical aberration was in 1868

Dictionary Entries Near spherical aberration

Cite this Entry

“Spherical aberration.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/spherical%20aberration. Accessed 14 Nov. 2024.

Medical Definition

spherical aberration

noun
spher·​i·​cal aberration ˈsfir-i-kəl-, ˈsfer- How to pronounce spherical aberration (audio)
: aberration that is caused by the spherical form of a lens or mirror and that gives different foci for central and marginal rays

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