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 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

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'spherical aberration.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1868, in the meaning defined above

Time Traveler

The first known use of spherical aberration was in 1868

See more words from the same year

Cite this Entry

Style

“Spherical aberration.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/spherical%20aberration. Accessed 17 Sep. 2024.

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