n. 1. an acronym for compact disk, a disk-shaped recording of binary data that is smaller than a phonograph record, and is recorded and played back by a compact disk player, an electronic device containing a laser. The term is also used generically to refer to the medium as a data storage medium.
Syn. -- compact disc, compact disk. [ WordNet 1.5 +PJC ]

2. a compact disk player. [ informal ] [ PJC ]

3. an acronym for certificate of deposit, a debt instrument issued by a bank for a fixed time period, usually paying interest.
Syn. -- certificate of deposit. [ WordNet 1.5 ]

n. 1. the chemical suymbol for cadmium, a metallic element of atomic number 48.
Syn. -- cadmium. [ WordNet 1.5 ]

2. the abbreviation for the candela, the basic unit of luminous intensity adopted under the System International d'Unites. [ abbr. ]
Syn. -- candle, candela, standard candle. [ WordNet 1.5 ]

n. [ from Compact Disk-Recordable. ] a recordable compact disk; a compact disc on which you can write only once and thereafter is read-only.
Syn. -- compact disc recordable, CD-WO, compact disc write-once. [ WordNet 1.5 ]

n. a compact disk that is used with a computer (rather than with an audio system); a large amount of digital information can be stored and accessed but it cannot be altered by the user.
Syn. -- compact disc read-only memory. [ WordNet 1.5 ]

n. [ from Compact Disk-Write Once. ] A recordable compact disk; a compact disc on which you can write only once and thereafter is read-only.
Syn. -- CD-R, compact disc recordable, compact disc write-once. [ WordNet 1.5 ]