nystagmus

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nys·tag·mus

 (nĭ-stăg′məs)
n.
A rapid, involuntary, oscillatory motion of the eyeball.

[New Latin, from Greek nustagmos, drowsiness.]

nys·tag′mic (-mĭk) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

nystagmus

(nɪˈstæɡməs)
n
(Medicine) 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
[C19: New Latin, from Greek nustagmos]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

nys•tag•mus

(nɪˈstæg məs)

n.
a persistent, rapid, involuntary side-to-side eye movement.
[1815–25; < New Latin < Greek nystagmós nodding, derivative of nystázein to nod]
nys•tag′mic, adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

nystagmus

uncontrollable and rapid movement of the eyeball in any direction. — nystagmic, adj.
See also: Eyes
-Ologies & -Isms. Copyright 2008 The Gale Group, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.nystagmus - involuntary movements of the eyeballs; its presence or absence is used to diagnose a variety of neurological and visual disorders
eye movement - the movement of the eyes
physiological nystagmus - small involuntary tremors of the eyeballs; when it is eliminated by stabilizing the image on the retina, visual perception fades rapidly from fatigue of the retinal receptors
rotational nystagmus - nystagmus caused by the body rotating rapidly; large slow movements of the eyeballs are in the direction of rotation
post-rotational nystagmus - nystagmus caused by suddenly stopping the rapid rotation of the body; large slow movements of the eyeballs are in the direction opposite to the direction of rotation
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations
nystagmus

nys·tag·mus

n. nistagmo, espasmo involuntario del globo ocular;
palatal ______ palatal.
English-Spanish Medical Dictionary © Farlex 2012

nystagmus

n nistagmo
English-Spanish/Spanish-English Medical Dictionary Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
References in periodicals archive ?
In neurological status, a lag of the left eye on upward gaze, right abducens paresis, horizontal nystagmus on vertical gaze, vertical nystagmus on upward gaze, and diplopia in all directions of gaze, as well as truncal ataxia were observed.
Dysphagia, imbalance, and hiccups were added in the follow-up, and a neurologic examination on the ninth day showed limitation of downward movements in his right eye and vertical nystagmus, mild deviation of his tongue to the right, paresis of the right palatal arch, and left Babinski sign.
In addition, ataxia, vertical nystagmus, and coordination disorder among extremities can be observed in cerebellar abscesses.
Neurological examination had revealed severe tetraparesis, vertical nystagmus, and normal reflexes in all four limbs.