Optics. Correction of a lens or sight defect so that there is an aberration opposite to that of the uncorrected lens or defect.
| 单词 | θ87916 | 
| 释义 | the world > action or operation > amending > 			[noun]		 > instance of > excessive (1)		 overcorrection1830 Optics. Correction of a lens or sight defect so that there is an aberration opposite to that of the uncorrected lens or defect.  | 
	
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