anastigmatic

adjective
an·a·stig·mat·ic | \ˌa-nə-(ˌ)stig-ˈma-tik, ˌa-ˌnas-tig-\

Definition of anastigmatic 

: not astigmatic used especially of lenses that are able to form approximately point images of object points

First Known Use of anastigmatic

1879, in the meaning defined above

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The first known use of anastigmatic was in 1879

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anastigmatic

adjective
an·astig·mat·ic | \ˌan-ə-(ˌ)stig-ˈmat-ik, ˌan-ˌas-tig- \

Medical Definition of anastigmatic 

: not astigmatic used especially of lenses that are able to form approximately point images of object points

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