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nystagmus

[ni-stag-muhs]

noun

  1. a congenital or acquired persistent, rapid, involuntary, and oscillatory movement of the eyeball, usually from side to side.



nystagmus

/ nɪˈstæɡməs /

noun

  1. involuntary movement of the eye comprising a smooth drift followed by a flick back, occurring in several situations, for example after the body has been rotated or in disorders of the cerebellum

“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Other Word Forms

  • nystagmic adjective
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Word History and Origins

Origin of nystagmus1

1815–25; < New Latin < Greek nystagmós nodding, derivative of nystázein to nod
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Word History and Origins

Origin of nystagmus1

C19: New Latin, from Greek nustagmos
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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Although the baby's general development was excellent, he was shocked to see that the baby's eyes were opaque and they were jerking abnormally from side to side, a phenomenon whose medical name is nystagmus.

Read more on Scientific American

The ranger also said he "observed four out of six clues on the horizontal gaze nystagmus test."

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His love of TV partly resulted from having nystagmus, a condition in which the eyes move rapidly of their own accord, greatly impairing vision.

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A 53-year-old professor of Hispanic studies at William & Mary, Root has nystagmus, a condition that causes her eyes to move involuntarily and makes it extremely challenging to read.

Read more on Washington Post

It’s hard—I have nystagmus, the result of a long-ago concussion.

Read more on Literature

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