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“ptosis”
ptosis (s), ptoses (pl)
1. An abnormal lowering or drooping of an organ or a part; especially, a drooping of the upper eyelid caused by muscle weakness or paralysis.
2. An abnormal downward displacement of the upper lid, as may result from paralysis of the third cranial nerve, sympathetic denervation, or injury; also called, lid drop.
2. An abnormal downward displacement of the upper lid, as may result from paralysis of the third cranial nerve, sympathetic denervation, or injury; also called, lid drop.
This entry is located in the following unit:
ptomato-, ptomat-, pto-, -ptosia, -ptosis, -ptoma, -ptot-
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(Greek: fall, a falling down of an organ; drooping, sagging; corpse)