ANASTIGMATIC

anastigmatic, stigmatic

(adjective) not astigmatic

anastigmatic, stigmatic

(adjective) pertaining to a lens or lens system free of astigmatism (able to form point images)

Source: WordNet® 3.1

Etymology

Adjective

anastigmatic (comparative more anastigmatic, superlative most anastigmatic)

(of the eye, or a lens system) Free from astigmatism

Source: Wiktionary

An*as`tig*mat"ic, a. [Pref. an-not + astigmatic.] (Optics)

Definition: Not astigmatic; --said esp. of a lens system which consists of a converging lens and a diverging lens of equal and opposite astigmatism but different focal lengths, and sensibly free from astigmatism.

Source: Webster’s Unabridged Dictionary 1913 Edition

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