AskDefine | Define CDR

Dictionary Definition

CD-R n : a compact disc on which you can write only once and thereafter is read-only memory [syn: compact disc recordable, CD-WO, compact disc write-once]

User Contributed Dictionary


  1. call detail record: a computer record representing a unit of traffic handled by a telephone exchange.
  2. common data rate
  3. 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. In the context of "ophthalmology": cup-to-disc ratio

Extensive Definition

CDR may refer to:

Computer science


  • CD-R, a recordable compact disc format
  • .cdr, the file extension for the CorelDRAW drawing file, and for the Raw Audio-CD data file
  • CDR (see CAR and CDR), the primitive operation on linked lists in Lisp-like programming languages
  • Call detail record, a computer record produced by a telephone exchange
  • Corporate data repository
  • Common Data Representation, a format used to represent data types during remote invocations on Common Object Request Broker Architecture (CORBA)
  • Clock recovery data, electronic device used for recovering clock and data from a serial stream

Medicine and health care

Organizations and groups


CDR in Czech: CDR
CDR in German: CDR
CDR in French: CDR
CDR in Korean: CDR
CDR in Italian: CDR
CDR in Japanese: CDR
CDR in Polish: CDR
CDR in Portuguese: CDR
CDR in Slovenian: CDR
CDR in Ukrainian: CDR
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