ptosis

[ toh-sis ]
/ ˈtoʊ sɪs /

noun Pathology.

a drooping of the upper eyelid.
prolapse or drooping of any organ.

Origin of ptosis

1735–45; < New Latin < Greek ptṓsis a falling

OTHER WORDS FROM ptosis

pto·tic [toh-tik] /ˈtoʊ tɪk/, adjective

Words nearby ptosis

ptolemy i, ptolemy ii, ptomaine, ptomaine poisoning, ptosed, ptosis, ptotic, ptp., pts, pts., ptsd

British Dictionary definitions for ptotic

ptosis
/ (ˈtəʊsɪs) /

noun plural ptoses (ˈtəʊsiːz)

prolapse or drooping of a part, esp the eyelid

Derived forms of ptosis

ptotic (ˈtɒtɪk), adjective

Word Origin for ptosis

C18: from Greek: a falling

Medical definitions for ptotic (1 of 2)

ptotic
[ tŏt′ĭk ]

adj.

Relating to or characterized by ptosis.

Medical definitions for ptotic (2 of 2)

ptosis
[ tō′sĭs ]

n. pl. pto•ses (-sēz)

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