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ptosis

[ toh-sis ]
/ ˈtoʊ sɪs /
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noun Pathology.
a drooping of the upper eyelid.
prolapse or drooping of any organ.
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Origin of ptosis

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

OTHER WORDS FROM ptosis

pto·tic [toh-tik], /ˈtoʊ tɪk/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use ptosis in a sentence

British Dictionary definitions for ptosis

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
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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