Also found in: Thesaurus, Medical, Encyclopedia, Wikipedia.


A rapid, involuntary, oscillatory motion of the eyeball.

[New Latin, from Greek nustagmos, drowsiness.]

nys·tag′mic (-mĭk) adj.


(Medicine) relating to the medical condition known as nystagmus
Mentioned in ?
References in periodicals archive ?
IAnd if you're oldish, and myopic, or long sighted, or nystagmic, you will doubtless empathise with my plight.
He lived without food for 70 days, longer than eight of the 10 men who died, physically suffering nothing more serious than ulcerative colitis (an inflammation of the bowel) and nystagmic (involuntarily twitching) eyes.
The normal nystagmic response of infants to caloric and per-rotary stimulation.