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nystagmus

Pronunciation: nis-tag'mus

Definition: Involuntary rhythmic oscillation of the eyeballs, either pendular or with a slow and fast component.

[G. nystagmos, a nodding, fr. nystazo, to be sleepy, nod]

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© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.
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