noun Etymology: New Latin, from Greek nystagmos drowsiness, from nystazein to doze; probably akin to Lithuanian snusti to doze Date: 1867 a rapid involuntary oscillation of the eyeballs, nystagmic adjective
NYSTAGMUS
Meaning of NYSTAGMUS in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012