See Also: Astigmatism(medicine)
astigmatism(encyclopedia)
astigmatism(dictionary)
Astigmatism(health)
astigmatism(dictionary)
lenticular astigmatism(medicine)
astigmatism against the rule(medicine)
astigmatism with the rule(medicine)
regular astigmatism(medicine)
myopic astigmatism(medicine)

fermail (iou) and astigmatism (oh)


fermail (iou)



fermail noun. L15.
[Old & mod. French, (Old French also -aille), from medieval Latin firmaculum, ferm- clasp, brooch, buckle, from firmare fix: see FIRM verb, -AL1.]
Chiefly Heraldry. A buckle, a clasp.

astigmatism (oh)



[Date: 1800-1900; Origin: A-2 + Greek stigma 'mark, point'; because there is no point at which light focuses]
difficulty in seeing clearly that is caused by a change in the inner shape of the eye