| 单词 | ptosis |
| 释义 | ptosis[ toh-sis ] / ˈtoʊ sɪs / noun Pathology.a drooping of the upper eyelid. prolapse or drooping of any organ. Origin of ptosis1735–45; <New Latin <Greek ptṓsis a falling OTHER WORDS FROM ptosispto·tic [toh-tik], /ˈtoʊ tɪk/, adjectiveDictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for ptosisptosis / (ˈtəʊsɪs) / noun plural ptoses (ˈtəʊsiːz)prolapse or drooping of a part, esp the eyelid Derived forms of ptosisptotic (ˈtɒtɪk), adjectiveWord Origin for ptosisC18: 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 Medical definitions for ptosis (1 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. Medical definitions for ptosis (2 of 2)-ptosis suff.Downward displacement or position:blepharoptosis. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. |
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