retroversion

from WordNet (r) 3.0 (2006)

retroversion
    n 1: a turning or tilting backward of an organ or body part;
         "retroversion of the uterus" [syn: {retroversion},
         {retroflection}, {retroflexion}]
    2: translation back into the original language; "the teacher
       translated Latin texts into English which he gave to his
       students for retroversion"
    3: returning to a former state [syn: {regression}, {regress},
       {reversion}, {retrogression}, {retroversion}]

from The Collaborative International Dictionary of English v.0.48

Retroversion \Re`tro*ver"sion\, n. [Cf. F. r['e]troversion. See
   {Retrovert}.]
   A turning or bending backward; also, the state of being
   turned or bent backward; displacement backwards; as,
   retroversion of the uterus.
   [1913 Webster]

   Note: In retroversion the bending is gradual or curved; in
         retroflexion it is abrupt or angular.
         [1913 Webster]

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