GRE Word List

ASTIGMATISM

a defect of an optical system (such as a lens) causing rays from a point to fail to meet in a focal point resulting in a blurred and imperfect image

The meaning of the word astigmatism is a defect of an optical system (such as a lens) causing rays from a point to fail to meet in a focal point resulting in a blurred and imperfect image.

Random words

WordMeaning
onslaughtan especially fierce attack
incurto become liable or subject to : bring down upon oneself
crevicea narrow opening resulting from a split or crack (as in a cliff) : fissure
cabalthe contrived schemes of a group of persons secretly united in a plot (as to overturn a government)
prolixityunduly prolonged or drawn out : too long
prehensileadapted for seizing or grasping especially by wrapping around
fawningseeking or used to seek approval or favor by means of flattery
flickerto move irregularly or unsteadily : flutter
kindleto start (a fire) burning : light
avengeto take vengeance for or on behalf of