Cd
Cd , noun
1.
the chemical symbol for cadmium, a metallic element of atomic number 48.
2.
the abbreviation for the candela, the basic unit of luminous intensity adopted under the System International d'Unites. [abbreviation]
CD , noun
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.
2.
3.
an acronym for certificate of deposit, a debt instrument issued by a bank for a fixed time period, usually paying interest.