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
adhereto hold fast or stick by or as if by gluing, suction, grasping, or fusing
iniquitouscharacterized by iniquity
prognosticateto foretell from signs or symptoms : predict
refurbishto brighten or freshen up : renovate
unaccountablenot to be accounted for : inexplicable
intractablenot easily governed, managed, or directed
tenacitythe quality or state of being tenacious
ventureto proceed especially in the face of danger
agnostica person who holds the view that any ultimate reality (such as God) is unknown and probably unknowable
rareseldom occurring or found : uncommon