| Pronunciation: | | 'towsis
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 WordNet Dictionary |
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| | Definition: | |
[n] drooping of the upper eyelid caused by muscle paralysis and weakness |
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PTOSIS is a 6 letter word that starts with P. |
| | See Also: | | descensus, prolapse, prolapsus |
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| Webster's 1913 Dictionary |
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| | Definition: | | \Pto"sis\, n. [NL., fr. Gr. ? a falling.] (Med.)
Drooping of the upper eyelid, produced by paralysis of its
levator muscle.
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| Medical Dictionary |
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| | Definition: | | Drooping, as of an eyelid. |
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