expressionless

adj : deliberately impassive in manner; "deadpan humor"; "his face

remained expressionless as the verdict was read" [syn:

{deadpan}, {impassive}, {poker-faced}, {unexpressive}]

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)