anastigmatic

American

[an-uh-stig-mat-ik, a-nas-tig-] / ˌæn ə stɪgˈmæt ɪk, æˌnæs tɪg- /

adjective

Optics.

(of a lens) not having astigmatism; forming point images of a point object located off the axis of the lens; stigmatic.

anastigmatic British

/ ˌænəstɪɡˈmætɪk /

adjective

Also: stigˈmatic. (of a lens or optical device) not astigmatic

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of anastigmatic

First recorded in 1885–90; an- ¹ + astigmatic

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023