Table of Contents
Antonyms
Synonyms
1. astigmatism
noun. ['əˈstɪgməˌtɪzəm'] (optics) defect in an optical system in which light rays from a single point fail to converge in a single focal point.
noun. ['əˈstɪgməˌtɪzəm'] (optics) defect in an optical system in which light rays from a single point fail to converge in a single focal point.