definition of
retroflexion

[1] #1 retroflexion n. [retroversion, retroflection] a turning or tilting backward of an organ or body part; "retroversion of the uterus". wn

[2] #2 retroflexion n. [retroflection] an articulatory gesture made by turning the tip of the tongue back against the roof of the mouth. wn

[3] #3 retroflexion n. [retroflection] the act of bending backward. wn