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astigmatism
noun
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How to pronounce astigmatism:

Definition of astigmatism:

astigmatism (noun):
(optics) defect in an optical system in which light rays from a single point fail to converge in a single focal point.
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

Synonyms for astigmatism:

visioneyediplopiamyopiahyperopiasquintsighteyesight

Antonyms for astigmatism:

eyesperspectivevisioneyefacultyperceptionsightobservationseeingeyesight

Other 5-syllable words like astigmatism

Here are some other common words that have 5 syllables, like astigmatism does.

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