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 |
|---|---|
| tyranny | oppressive power |
| parley | to speak with another : confer |
| reek | smoke |
| canine | a conical pointed tooth |
| milieu | the physical or social setting in which something occurs or develops : environment |
| dissension | disagreement |
| absolute | free from imperfection : perfect |
| allegiance | the obligation of a feudal vassal to his liege lord |
| hummock | a rounded knoll or hillock |
| overt | open to view : manifest |