- retroversion, retroflection, retroflexion - a turning or tilting backward of an organ or body part; "retroversion of the uterus"
--1 is a kind of abnormality, abnormalcy, abnormal condition
- retroflection, retroflexion - an articulatory gesture made by turning the tip of the tongue back against the roof of the mouth
--2 is a kind of articulation
Derived form: verb retroflex2 - retroflection, retroflexion - the act of bending backward
--3 is a kind of motion, movement, move, motility
Derived form: verb retroflex1