gensym

gensym

(library)/jen'sim/ (From the MacLISP for "generatedsymbol") To invent a new name for something temporary, insuch a way that the name is almost certainly not in conflictwith one already in use.

The canonical form of a gensym is "Gnnnn" where nnnnrepresents a number; any LISP hacker would recognise G0093(for example) as a gensym. Gensymmed names are useful forstoring or uniquely identifying crufties.