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 |
|---|---|
| impasse | a predicament affording no obvious escape |
| bastion | a projecting part of a fortification |
| dys- | abnormal |
| collateral | property (such as securities) pledged by a borrower to protect the interests of the lender |
| conspire | plot |
| swarm | a great number of honeybees emigrating together from a hive in company with a queen to start a new colony elsewhere |
| spare | not being used |
| steadfast | firmly fixed in place : immovable |
| meander | a winding path or course |
| eventual | contingent |