Function: noun
Date: 1868
: aberration that is caused by the spherical form of a lens or mirror and that gives different foci for central and marginal rays
Function: noun
Date: 1868
: aberration that is caused by the spherical form of a lens or mirror and that gives different foci for central and marginal rays
Merriam Webster Collegiate English Dictionary. Merriam Webster - Энциклопедический словарь английского языка. 2012