|anə(ˌ)stig|mad.ik, |aˌnast-, a|nast-, -naast-, -a(a)stēg-, -matik, -ēk adjective
also an·as·tig·mat (ˈ)a|nastigˌmat, |anə|stigˌ-
Etymology: anastigmatic, International Scientific Vocabulary, from an- + astigmatic; anastigmat from anastigmat, n.
: not astigmatic — used especially of lenses that are able to form approximately point images of object points