The Collaborative International Dictionary of English v.0.48:

Obliquation \Ob`li*qua"tion\, n. [L. obliquatio, fr. obliquare
   to turn obliquely. See Oblique.]
   1. The act of becoming oblique; a turning to one side;
      obliquity; as, the obliquation of the eyes. [R.] --Sir T.
      Browne.
      [1913 Webster]

   2. Deviation from moral rectitude. [R.]
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