1. (initialism) .  call detail record: a computer record representing a unit of traffic handled by a telephone exchange.
  2. (initialism) .  common data rate.
  3. (initialism) .  content of decrement of register: cdr is a Lisp (and Scheme) instruction, that has become a verb in the MIT: "to cdr down" means to evaluate the items of a list one by one.
  4. (initialism) .  (context, ophthalmology) cup-to-disc ratio.
  5. Noun.  (computing) The second part of a cons in LISP. The rest of a list when the first element is removed.

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This entry was last updated on RefTopia from its source on 3/20/2012.