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nystagmus

Pronunciation: /nɪˈstagməs/

Definition of nystagmus

noun

[mass noun]
  • rapid involuntary movements of the eyes.

Derivatives

nystagmic

adjective

Origin:

early 19th century: from Greek nustagmos 'nodding, drowsiness', from nustazein 'nod, be sleepy'

nystagmus in other Oxford dictionaries

Definition of nystagmus in the US English dictionary