spherical aberration

noun

Definition of spherical aberration 

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

First Known Use of spherical aberration

1868, in the meaning defined above

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The first known use of spherical aberration was in 1868

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spherical aberration

noun
spher·i·cal aberration | \ˈsfir-i-kəl-, ˈsfer- \

Medical Definition of spherical aberration 

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

More from Merriam-Webster on spherical aberration

Britannica.com: Encyclopedia article about spherical aberration

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