Adjacent Words

astigmatic definitions

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WordNet (r) 3.0 (2005)

adj
1: of or relating to a defect in the eye or in a lens caused by a deviation from spherical curvature which prevents light rays from meeting at a common focus and so results in distorted images [ant: anastigmatic, stigmatic]

Merriam Webster's

adjective Etymology: a- + Greek stigmat-, stigma stigma Date: 1849 1. affected with, relating to, or correcting astigmatism 2. showing incapacity for observation or discrimination <an astigmatic fanaticism, a disregard for the facts — New York Herald Tribune> • astigmatic noun

Webster's 1913 Dictionary

Astigmatic As`tig*mat"ic, a. (Med. & Opt.) Affected with, or pertaining to, astigmatism; as, astigmatic eyes; also, remedying astigmatism; as, astigmatic lenses.