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
Word | Meaning |
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futile | serving no useful purpose : completely ineffective |
pedantic | of, relating to, or being a pedant |
mete | to give out by measure : dole out |
skim | to clear (a liquid) of scum or floating substance |
bearing | the manner in which one behaves or comports oneself : the manner in which one bears (see bear |
penumbra | a space of partial illumination (as in an eclipse) between the perfect shadow on all sides and the full light |
seamy | having the rough side of the seam showing |
euthanasia | the act or practice of killing or permitting the death of hopelessly sick or injured individuals (such as persons or domestic animals) in a relatively painless way for reasons of mercy |
authoritarian | of, relating to, or favoring blind submission to authority |
nimble | quick and light in motion : agile |