The Free On-line Dictionary of Computing (30 December 2018):

static nested scope
static nested scoping

    Where the scope of an identifier is fixed at
   compile-time to be the smallest block (begin/end,
   function, or procedure body) containing the identifier's
   declaration.  This means that an identifier declared in some
   block is only accessible within that block and from procedures
   declared within it.

   This term is used in the Python community.

   Compare lexical scope.

   (2002-02-18)