cd

1 of 5

abbreviation (1)

1

candela

2

candle

3

cord

Cd

2 of 5

symbol

cadmium

CD

3 of 5

noun (1)

ˌsē-ˈdē 

: certificate of deposit

CD

4 of 5

noun (2)

: a small optical disk usually containing recorded music or computer data

also : the content (such as music or a computer program) of a CD released as a unit

promoting her latest CD

CD

5 of 5

abbreviation (2)

1

carried down

2

civil defense

3

[French corps diplomatique] diplomatic corps

Examples of cd in a Sentence

Recent Examples on the Web

Noun

The veteran rock band arrived at the tail end of the CD era, lived through the download era and has thrived in the streaming era. —Glenn Peoples, Billboard, 18 Sep. 2025

Run parallel legal and engineering workstreams, integrate automated compliance checks into CI/CD, and leverage iterative release cycles to sustain development velocity while ensuring adherence to multijurisdictional insurance regulations without bottlenecks or delays. —Harneet Kalra, Forbes.com, 18 Sep. 2025

Fans can pre-order the album on both vinyl and CD. —Charna Flam, PEOPLE, 18 Sep. 2025

In 2021 Apple Music started offering lossless CD quality and high-resolution streaming to all subscribers at no additional charge. —Nina Corcoran, Pitchfork, 10 Sep. 2025

Word History

Etymology

Noun (2)

compact disc

First Known Use

Noun (1)

1866, in the meaning defined above

Noun (2)

1979, in the meaning defined above

Phrases Containing cd

• CD-ROM

Kids Definition

CD

noun

ˌsē-dē

: a small plastic disk on which information (as music or computer data) is recorded digitally and read by using a laser

Medical Definition

cd

1 of 3 abbreviation

candela

Cd

2 of 3 symbol

cadmium

CD

3 of 3 abbreviation

1

cluster of differentiation

—used with a number to denote any of numerous antigenic proteins found chiefly on the surface of white blood cells (such as T cells or B cells) see cd4, cd8

2

communicable disease

3

constant drainage

4

contagious disease

5

convulsive disorder

6

curative dose

Legal Definition

CD

abbreviation

certificate of deposit