ptosis

pto·sis  (tss)

n. pl. pto·ses (-sz)

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

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[Greek ptsis, fall, from piptein, pt-, to fall; see pet- in Indo-European roots.]

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ptotic (-tk) adj.

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ptosis [ˈtəʊsɪs]

n pl ptoses [ˈtəʊsiːz]

(Medicine / Pathology) prolapse or drooping of a part, esp the eyelid

[from Greek: a falling]

ptotic  [ˈtɒtɪk] adj

Thesaurus

Noun

1.

ptosis - drooping of the upper eyelid caused by muscle paralysis and weakness brow ptosis - sagging eyebrows descensus, prolapse, prolapsus - the slipping or falling out of place of an organ (as the uterus)