| 单词 | ptoses | 
| 释义 | ptoses in British English (ˈtəʊsiːz) plural noun  ptosis ptosis in British English (ˈtəʊsɪs) nounWord forms:  plural ptoses (ˈtəʊsiːz) prolapse or drooping of a part, esp the eyelid Derived formsptotic (ˈtɒtɪk)  adjective Word originC18: from Greek: a falling | 
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