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 |
|---|---|
| crevice | a narrow opening resulting from a split or crack (as in a cliff) : fissure |
| fickle | marked by lack of steadfastness, constancy, or stability : given to erratic changeableness |
| promote | to advance in station, rank, or honor : raise |
| siren | any of a group of female and partly human creatures in Greek mythology that lured mariners to destruction by their singing |
| brazen | made of brass |
| ghastly | terrifyingly horrible to the senses : frightening |
| connubial | of or relating to the married state : conjugal |
| vulgar | lacking in cultivation, perception, or taste : coarse |
| acumen | keenness and depth of perception, discernment, or discrimination especially in practical matters |
| apparition | an unusual or unexpected sight : phenomenon |