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

WordMeaning
bedizento dress or adorn gaudily
lumberto move ponderously
preemptto acquire (something, such as land) by preemption
irksometending to irk : tedious
refractiondeflection from a straight path undergone by a light ray or energy wave in passing obliquely from one medium (such as air) into another (such as glass) in which its velocity is different
ingenuousshowing innocent or childlike simplicity and candidness
ruminateto go over in the mind repeatedly and often casually or slowly
resilientcharacterized or marked by resilience: such as
draughta rough written version of something that is not yet in its final form; to write the first rough version of something such as a letter, speech, book or law; to choose people and send them somewhere for a special task
syllogisma deductive scheme of a formal argument consisting of a major and a minor premise and a conclusion (as in "every virtue is laudable; kindness is a virtue; therefore kindness is laudable")