ptosis

[ toh-sis ]

noun

, Pathology.

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

ptosis

/ ˈtəʊsɪs; ˈtɒtɪk /

noun

1. prolapse or drooping of a part, esp the eyelid

Derived Forms

• ptotic, adjective

Other Words From

• pto·tic [toh, -tik], adjective

Word History and Origins

Origin of ptosis¹

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

Word History and Origins

Origin of ptosis¹

C18: from Greek: a falling

Example Sentences

This was diagnosed as ptosis of his organs, and an operation was done to tuck these up.

From Project Gutenberg

When the ptosis got very bad he would hold his eyelid up with one hand while he wrote.

From Project Gutenberg

This operation is performed for cases of ptosis in which there is partial or complete loss of upward movement of the lid.

From Project Gutenberg

They are often preceded by strabismus, with or without ptosis; the strabismus, is usually accompanied by amblyopia.

From Project Gutenberg

The levator palpebrae superioris is paralysed, and the resulting ptosis completes the picture.

From Project Gutenberg