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 |
|---|---|
| mandatory | required by a law or rule : obligatory |
| unregenerate | not regenerate |
| miscellany | separate writings collected in one volume |
| annals | a record of events arranged in yearly sequence |
| abrasive | causing damage, wear, or removal of surface material by grinding or rubbing : tending to abrade |
| aphorism | a concise statement of a principle |
| extradition | the surrender of an alleged criminal usually under the provisions of a treaty or statute by one authority (such as a state) to another having jurisdiction to try the charge |
| buoyant | having buoyancy |
| flinch | to withdraw or shrink from or as if from pain : wince |
| ken | the range of perception, understanding, or knowledge |