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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
http://www.medicinenet.com/script/main/art.asp?articlekey=10146
Last Editorial Review: 6/14/2012

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