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 |
|---|---|
| genus | a class, kind, or group marked by common characteristics or by one common characteristic |
| bicker | petulant quarreling : altercation |
| antler | one of the paired deciduous solid bony processes that arise from the frontal bone on the head of an animal of the deer family |
| cogent | appealing forcibly to the mind or reason : convincing |
| confine | something (such as borders or walls) that encloses |
| nubile | of marriageable condition or age |
| rhetoric | the art of speaking or writing effectively: such as |
| flutter | to flap the wings rapidly |
| tundra | a level or rolling treeless plain that is characteristic of arctic and subarctic regions, consists of black mucky soil with a permanently frozen subsoil, and has a dominant vegetation of mosses, lichens, herbs, and dwarf shrubs |
| sway | the action or an instance of swaying or of being swayed : an oscillating, fluctuating, or sweeping motion |