| 单词 | decidua | 
| 释义 | deciduanoun  de·cid·ua  di-ˈsi-jə-wə  -jü-ə    plural deciduae di-ˈsi-jə-ˌwē  -jü-ˌē 1   : the part of the endometrium that in higher placental mammals undergoes special modifications in preparation for and during pregnancy and is cast off at parturition   2   : the part of the endometrium cast off in the process of menstruation    decidual   di-ˈsi-jə-wəl adjective -jü-əl | 
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