Definition of nictation in English:



  • The action or process of blinking.

    • ‘Any conspicuous behavior indicating the existence of ophthalmic irritation due to the administered drugs such as closing eye or nictation was not observed after the instillation.’
    • ‘One or more, and in some cases all five, nematode replicate lines showed declines in virulence, reproduction, heat tolerance, host seeking ability, and nictation.’
    • ‘The invention relates to a preparation which is used for treating human muscular dystonias such as strabismus and torticolis, involuntary nictation and is obtainable from a Clostridium botulism culture toxin and to a method for production thereof.’
    • ‘Snaked earth, crow-spotted through the sun-leagues, coils in their fierce emphatic eyes, cleansed by the flicker of the lids' nictation.’
    • ‘The key reason for this dichotomy in behavior is nictation.’


Late 18th century: from Latin nictatio(n-), from the verb nictare to blink.