gensym

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gensym /jen'sim/ [from MacLISP for `generated symbol'] 1. /v./ To invent a new name for something temporary, in such a way that the name is almost certainly not in conflict with one already in use. 2. /n./ The resulting name. The canonical form of a gensym is `Gnnnn' where nnnn represents a number; any LISP hacker would recognize G0093 (for example) as a gensym. 3. A freshly generated data structure with a gensymmed name. Gensymmed names are useful for storing or uniquely identifying crufties (see cruft).


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