vt \-kə-ˈrekt\

Definition of OVERCORRECT

: to apply a correction to in excess of that required (as for satisfactory performance); specifically : to correct (a lens) beyond the point of achromatism or so that there is aberration of a kind opposite to that of the uncorrected lens
over·cor·rec·tion \-kə-ˈrek-shən\ noun

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