\ā-ˈplan-ə-ˌtiz-əm, ˈap-lə-ˌnat-ˌiz-\

Definition of APLANATISM

: freedom from spherical aberration

Seen & Heard

What made you want to look up aplanatism? Please tell us where you read or heard it (including the quote, if possible).

Get Our Free Apps
Voice Search, Favorites,
Word of the Day, and More
Join Us on FB & Twitter
Get the Word of the Day and More