M-expression LISP
(MLISP) The original "{meta-language}" {syntax} of {Lisp},
designed by {John McCarthy} in 1962. MLISP was intended for
external use in place of the parenthesised {S-expression}
{syntax}.
["LISP 1.5 Programmer's Manual", J. McCarthy et al, MIT Press
1962].
(1994-11-22)