From The Free On-line Dictionary of Computing (19 January 2023):
BALM
Block And List Manipulation
<language> (Block And List Manipulation) An extensible
language, developed by Malcolm Harrison in 1970, with
LISP-like features and ALGOL-like syntax, for CDC
6600.
["The Balm Programming Language", Malcolm Harrison, Courant
Inst, May 1973].
(2007-03-01)