i.materialise has put together a very helpful list of terminology for those just beginning to learn about 3D modeling. From NURBS to NURMS, they help outline a very simple explanation of what might otherwise have been very confusing terms. With this guidance, you should find yourself having an easier time creating curves and rounded surfaces, as well as achieving better detail and smoothness. Read more at 3DPrint.com: https://3dprint.com/135251/nurbs-nurms-3d-modeling/