ptosis

Definitions

  • WordNet 3.6
    • n ptosis drooping of the upper eyelid caused by muscle paralysis and weakness
    • ***
Webster's Revised Unabridged Dictionary
    • n Ptosis (Med) Drooping of the upper eyelid, produced by paralysis of its levator muscle.
    • ***
Century Dictionary and Cyclopedia
    • ptosis A falling of the upper eyelid, or inability to raise it, due to paralysis of the levator palpebræ. Slight ptosis may be due to paralysis of Müller's muscle innervated through the cervical sympathetic. Also called blepharoptosis, blepharoplegia.
    • n ptosis A falling down or prolapse of any of the abdominal viscera. Also called Glenard's disease and enteroptosis.
    • ***
Chambers's Twentieth Century Dictionary
    • n Ptosis tō′sis inability to raise the upper eyelid.
    • ***

Etymology

Webster's Revised Unabridged Dictionary
NL., fr. Gr. a falling
Chambers's Twentieth Century Dictionary
Gr.,—piptein, to fall.

Usage

In literature:

When the ptosis got very bad he would hold his eyelid up with one hand while he wrote.
"Round the Red Lamp" by Arthur Conan Doyle
His left eyelid was involuntarily closed and he had no power to overcome his ptosis.
"Anomalies and Curiosities of Medicine" by George M. Gould
Eye-strain is another; ptosis, or falling of the organs, is another.
"Outwitting Our Nerves" by Josephine A. Jackson and Helen M. Salisbury
When the ptosis got very bad he would hold his eyelid up with one hand while he wrote.
"The Man from Archangel" by A. Conan Doyle
Frequent transitory or permanent strabismus or ptosis, one or both.
"Neuralgia and the Diseases that Resemble it" by Francis E. Anstie
***