Category: Ambiguous three-letter acronyms A CD-R (Compact Disc-Recordable) is variation of the Compact Disc digital audio disc invented by Philips and Sony. ... The Compact Disc logo was inspired by that of the previous Compact Cassette. ... A Call Detail Record (CDR) (also Call Detail Recording) or Station Message Detail Recording (SMDR) in the telecom sector is a file containing information about recent system usage such as the identities of sources (points of origin), the identities of destinations (endpoints), the duration of each call, the amount billed... For the primitive function in Lisp, see cdr. ... The Romanian Democratic Convention (Romanian: Convenţia Democrată Română, CDR) was an electoral alliance of several political parties of Romania, active from early 1992 until 2000. ... The 1990s decade refers to the years from 1990 to 1999, inclusive. ... Crédit Lyonnais is a French bank. ... Dept. ... is a real-time database that consolidates data from a variety of clinical sources to present a unified view of a single patient. ... In the Lisp programming language, car and cdr (IPA [kÉ™dÉ™r] or [kudÉ™r]) are a pair of primitive functions to extract the left and right half (respectively) of a cons cell. ... Lisp is a family of computer programming languages with a long history and a distinctive fully-parenthesized syntax. ... Hypervariable sequence A segment of a chromosome characterised by considerable variation in the number of tandem repeats at one or more loci From: http://courses. ... An antigen is a molecule that stimulates the production of antibodies. ... Schematic of antibody binding to an antigen An antibody is a protein used by the immune system to identify and neutralize foreign objects like bacteria and viruses. ... A filename extension or filename suffix is an extra set of (usually) alphanumeric characters that is appended to the end of a filename to allow computer users (as well as various pieces of software on the computer system) to quickly determine the type of data stored in the file. ... The County Donegal Railways Joint Committee operated in north-west Ireland during the 20th century. ... The TLA (three-letter acronym or three-letter abbreviation) is a TLA and is the most popular type of abbreviation in technical terminology, and is also very common in general language. ...