单词	spherical aberration
释义	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 Word History First Known Use 1868, in the meaning defined above Medical Definition spherical aberration noun spher·​i·​cal aberration ˈsfir-i-kəl-, ˈsfer-  : 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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