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 |
|---|---|
| demerit | offense |
| concentric | having a common center |
| quarantine | a period of 40 days |
| sheer | unqualified |
| trappings | outward signs |
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| filth | foul or putrid matter |
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