dotted pair

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dotted pair

(programming)   The usual LISP syntax for representing a cons cell that is not a list. For example, the expression

 (cons 'foo 42) 

returns a cons cell that is output as

 (foo . 42) 

which represents a cons cell whose car is the symbol "foo" and whose cdr is the integer 42.

Last updated: 2014-11-09