Bible Dictionaries
Astigmatism

Webster's Dictionary

(n.) A defect of the eye or of a lens, in consequence of which the rays derived from one point are not brought to a single focal point, thus causing imperfect images or indistinctness of vision.

Bibliography Information
Webster, Noah. Entry for 'Astigmatism'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​a/astigmatism.html. 1828.