1. 后屈：牵缩肌 retractor muscle | 后屈 retroflexion | 逆运输 retrograde transport
2. 反曲：retroflexed 向后弯曲的 | retroflexion 反曲 | retrogradation 逆行
3. 子宫后屈：retroflexfinal 儿化韵 | retroflexion 子宫后屈 | retroflexretroflexed 翻转的
4. 捲舌：retroflexed final 兒化韻 | retroflexion 捲舌 | retrogressive 逆向的
noun
1. the act of bending backward
Synonym: retroflection
2. 911查询·英语单词
2. an articulatory gesture made by turning the tip of the tongue back against the roof of the mouth
Synonym: retroflection
3. a turning or tilting backward of an organ or body part
e.g. retroversion of the uterus
Synonym: retroversion retroflection