NYSTAGMUS
Dictionary entry overview: What does nystagmus mean? • NYSTAGMUS (noun)
The noun NYSTAGMUS has 1 sense:
1. involuntary movements of the eyeballs; its presence or absence is used to diagnose a variety of neurological and visual disorders
Familiarity information: NYSTAGMUS used as a noun is very rare.
Dictionary entry details
• NYSTAGMUS (noun)
Meaning:
Involuntary movements of the eyeballs; its presence or absence is used to diagnose a variety of neurological and visual disorders
Classified under:
Nouns denoting acts or actions
Hypernyms ("nystagmus" is a kind of...):
eye movement (the movement of the eyes)
Hyponyms (each of the following is a kind of "nystagmus"):
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)
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