nystagmus nystagmic • nyxis · · · Info · Definitions · Characters · · nystagmus · · Text Latin · · Script 9 · · Length Definitions · · · (noun) involuntary movements of the eyeballs; its presence or absence is used to diagnose a variety of neurological and visual disorders. · · Noun Definition 1 Characters · · a latin small letter a U+0061 g latin small letter g U+0067 m latin small letter m U+006D n latin small letter n U+006E s latin small letter s U+0073 t latin small letter t U+0074 u latin small letter u U+0075 y latin small letter y U+0079