Source: The Collaborative International Dictionary of English v.0.48
Twisted \Twist"ed\, a.
Contorted; crooked spirally; subjected to torsion; hence,
perverted.
[1913 Webster]
Twisted curve (Geom.), a curve of double curvature. See
Plane curve, under Curve.
Twisted surface (Geom.), a surface described by a straight
line moving according to any law whatever, yet so that the
consecutive positions of the line shall not be in one
plane; a warped surface.
[1913 Webster]