Nystagmus Definition
nĭ-stăgməs
noun
Involuntary, rapid movement of the eyeball, usually from side to side.
Webster's New World
Nystagmus is a rapid and involuntary eye movement that can result in sight problems.
An example of nystagmus is when the eyeball suddenly moves from side to side by itself.
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Other Word Forms of Nystagmus
Noun
Singular:
nystagmus
Plural:
nystagmusesOrigin of Nystagmus
First attested in 1798. From New Latin nystagmus, from Ancient Greek νυσταγμός (nustagmos, “nodding, drowsiness"), from νυστάζω (nustazō, “nod, be sleepy").
From Wiktionary
New Latin from Greek nustagmos drowsiness
From American Heritage Dictionary of the English Language, 5th Edition
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