Dictionary.net

[Latin] Winking; as N. spasm. N. membrane, the third eyelid of animals, a reduplication of the conjunctiva usually concealed beneath the lower lid, but which can be protruded so as to cover the eyeball.

Winking; winking rapidly.

[L.] (Anat.) In birds, amphibia, and some mammals, the suspensory muscle of the eye, which is thrust forth and drawn back, so as to sweep away irritating particles.