Interlisp
     
        A dialect of Lisp developed in 1967 by Bolt, Beranek and
        Newman (Cambridge, MA) as a descendant of BBN-Lisp.  It
        emphasises user interfaces.  It is currently supported by
        Xerox PARC.
     
        Interlisp was once one of two main branches of LISP (the other
        being MACLISP).  In 1981 Common LISP was begun in an
        effort to combine the best features of both.  Interlisp
        includes a Lisp programming environment.  It is dynamically
        scoped.  NLAMBDA functions do not evaluate their arguments.
        Any function could be called with optional arguments.
     
        See also CLISP, Interlisp-10, Interlisp-D.
     
        ["Interlisp Programming Manual", W. Teitelman, TR, Xerox Rec
        Ctr 1975].