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 |
|---|---|
| adventitious | coming from another source and not inherent or innate |
| conversant | having knowledge or experience |
| inane | lacking significance, meaning, or point : silly |
| extenuate | to lessen or to try to lessen the seriousness or extent of (something, such as a fault or offense) by making partial excuses : mitigate |
| obviate | to anticipate and prevent (something, such as a situation) or make (an action) unnecessary |
| absolute | free from imperfection : perfect |
| valediction | an act of bidding farewell |
| downcast | low in spirit : dejected |
| savory | having savor: such as |
| bewitch | to influence or affect especially injuriously by witchcraft |