a. Phys. [f. Gr. ἀ priv. + στίγμα, -ματ- point + -IC.] Pertaining to or characterized by astigmatism.
1849. Todd, Cycl. Anat. & Phys., IV. 1468/2. An astigmatic lens.
1879. Harlan, Eyesight, vi. 82. The astigmatic cornea … has different curvatures in directions at right angles to each other.
