资料来源 : Webster's Revised Unabridged Dictionary (1913)

Nictitate \Nic"ti*tate\, v. i. [See {Nictate}.]
   To wink; to nictate.

   {Nictitating membrance} (Anat.), a thin membrance, found in
      many animals at the inner angle, or beneath the lower lid,
      of the eye, and capable of being drawn across the eyeball;
      the third eyelid; the haw.