ptosis

Abnormal lowering or drooping of an organ or a part, especially a drooping of the upper eyelid caused by muscle weakness or paralysis.

A falling down or prolapse of any of the abdominal viscera. Also called Glenard’s disease and enteroptosis.

A falling of the upper eyelid, or inability to raise it, due to paralysis of the levator palpebræ.

Drooping of the upper eyelid, produced by paralysis of its levator muscle.

The prolapse of a bodily organ, especially drooping of the eyelid.

drooping of the upper eyelid caused by muscle paralysis and weakness