v. i. [ See Nictate. ] To wink; to nictate. [ 1913 Webster ]

Nictitating membrane (Anat.), a thin membrane, 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. [ 1913 Webster ]

v. i. [ See Nictate. ] To wink; to nictate. [ 1913 Webster ]

Nictitating membrane (Anat.), a thin membrane, 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. [ 1913 Webster ]