Source : Free On-Line Dictionary of Computing

Non-Uniform Rational B Spline
     
         (nurbs) A common term in Mechanical
        {CAD}.  The NURBS has excellent continuity characteristics
        which make it useful for creating accurate models in 3D
        geometry generation and computer modelling.
     
        [What is a nurbs?  an rbs?  a bs?  a s?]
     
        (1996-08-27)