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
coincidencethe act or condition of coinciding : correspondence
subsideto sink or fall to the bottom : settle
euphoriaa feeling of well-being or elation
proprietythe quality or state of being proper or suitable : appropriateness
imperativenot to be avoided or evaded : necessary
zanyvery eccentric (see eccentric
raimentclothing
eclipsethe total or partial obscuring of one celestial body by another
unfledgednot feathered : not ready for flight
benisonblessing