Her eyes were already beginning to glaze over, the double eyelids spasming in repeated nictitation.    From Wordnik.com.  [Sliding Scales]

For it is better to have one starting-point for nictitation than two; and in these birds this starting-point is the junction of eye and nostrils, an anterior starting-point being preferable to a lateral one.    From Wordnik.com.  [On the Parts of Animals] Reference

No twinkling, no scintillation, no nictitation, disturbed their pure and lambent gleam.    From Wordnik.com.  [All Around the Moon] Reference

This want of transparency of the cornea is visible sometimes in dying people, owing to their inirritability, and consequent neglect of nictitation.    From Wordnik.com.  [Zoonomia, Vol. II Or, the Laws of Organic Life] Reference

The peculiar W-shaped mouth, the incessant nictitation of the sinister eyelid, the naughty little twinkle in the eye itself, the glistening glory of the arms, each terminating in.    From Wordnik.com.  [The War of the Wenuses] Reference

I. 1. 4. 1. but when it is produced by a stronger stimulus of any extraneous material in the eye, so as to cause pain, the violent and frequent nictitation is caused by the faculty of sensation.    From Wordnik.com.  [Zoonomia, Vol. II Or, the Laws of Organic Life] Reference

Those trains or tribes of associate motions, whose introductory link consists of an irritative motion, are termed irritative associations; as when the muscles of the eyelids close the eye in common nictitation.    From Wordnik.com.  [Zoonomia, Vol. II Or, the Laws of Organic Life] Reference

Or perhaps sometimes for the purpose of diffusing a part of it over the dry membranes of the fauces and pharinx; in the same manner as tears are diffused over the cornea of the eye by the act of nictitation to clean or moisten it.    From Wordnik.com.  [Zoonomia, Vol. II Or, the Laws of Organic Life] Reference

Other catenations of animal motion are gradually acquired by successive agreeable sensations, as in learning a favourite song or dance; others by disagreeable sensations, as in coughing or nictitation; these become associated by frequent repetition, and afterwards compose parts of greater circles of action like those above mentioned.    From Wordnik.com.  [Zoonomia, Vol. I Or, the Laws of Organic Life] Reference

When any one moves his hand quickly near another person's eyes, the eye-lids instantly close; this act in common language is termed involuntary, as we have not time to deliberate or to exert any contrary desire or aversion, but in this work it would be termed a voluntary act, because it is caused by the faculty of volition, and after a few trials the nictitation can be prevented by a contrary or opposing volition.    From Wordnik.com.  [Zoonomia, Vol. I Or, the Laws of Organic Life] Reference

1. 1. 1. we have endeavoured to give names to four links of animal causation, which conveniently apply to the classification of diseases; thus in common nictitation, or winking with the eyes without our attention to it, the increased irritation is the proximate cause; the stimulus of the air on the dry cornea is the remote cause; the closing of the eyelid is the proximate effect; and the diffusion of tears over the eye-ball is the remote effect.    From Wordnik.com.  [Zoonomia, Vol. II Or, the Laws of Organic Life] Reference