单词：placental
音标：[plә'sentl] ；
a. (有)胎盘的, (有)胎座的
n. 有胎盘哺乳动物
n. 有胎盘哺乳动物
n. mammals having a placenta; all mammals except monotremes and marsupials
a. pertaining to or having or occurring by means of a placenta
a. pertaining to or having or occurring by means of a placenta
词型变化：名词复数形式 : placentals
词性分布：
placental的用法和样例：
例句
用作形容词(adj.)
- All mammals except monotremes and marsupials are placental mammals.除了单孔类动物和有袋动物之外所有的哺乳动物都是有胎盘的哺乳动物。
- Capsule included in calyx, septicidal, valves separating from wide placental axis.蒴果内藏于花萼，室间开裂，裂爿从宽分开胎盘的轴。
用作名词(n.)
- Sloths and their relatives branched off from all other placental mammals about 100 million years ago.树懒及其亲缘大约在一亿年前与其它的胎盘哺乳动物分道扬镳。
词汇搭配
- placental barrier胎盘屏障
- placental plasmodium[医] 胎盘合胞体...
- placental transmission胎盘透过
- placental zone[医] 胎盘(附着)...
- placental forceps胎盘钳
- placental respiration胎盘呼吸
- placental mammals胎盘哺乳动物...
- placental infarction胎盘梗塞
- placental fibrosis胎盘纤维化
- placental membrane胎盘膜
- placental fold胎盘褶
- placental immunity[医] 胎盘免疫, ...
- placental globulin胎盘球蛋白
- placental septum胎盘隔
- placental localization胎盘定位
- placental lobules胎盘小叶
- placental hormone胎盘激素
- placental pole[医] 胎盘极(胚)...