Medical Definition of Nictitating spasm
Nictitating spasm: Spasm of the eyelid with continuous winking.
To nictitiate is to wink. "Nictitate" and the older verb "nictate" both come from the Latin word for winking, "nictare."Source: MedTerms™ Medical Dictionary
Last Editorial Review: 7/1/2016
Medical Dictionary Definitions A - Z
Search Medical Dictionary