Definitions for "user control"
Keywords:  reusable, asp, ascx, subobject, activex
a chunk of reusable Web Forms code packaged in an ASCX file
a control that allows you to combine several controls within one single composite control
a Control that derives from UserControl
a Type, whereas a form is a Member of the Windows application
a section of a page that has its own HTML elements and the code that interacts with those elements