compact disc

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compact disc

A child carefully places a compact disc into a portable player.

Definition
  1. Noun:
    • A digitally encoded recording on an optical disc: A "compact disc" is a flat, circular storage medium that uses optical technology to store digital data, such as audio, video, or computer files.
    • A specific format for audio playback: Commonly, it refers to the standard format for storing and playing high-quality digital audio recordings, which is read by a laser beam in a CD player.
Examples of Usage
  • Noun:
    • I bought the new album on compact disc. (I purchased the new music album in the CD format.)
    • The software was distributed on a compact disc. (The computer program was provided on a CD.)
    • This compact disc contains the conference proceedings. (This CD holds the digital records from the conference.)
Advanced Usage
  • "CD" as an abbreviation: "Compact disc" is almost universally abbreviated to "CD" in everyday language.
    • Do you have a CD player in your car? (Is there a device for playing compact discs in your vehicle?)
  • In technical contexts: Refers to the physical standards (e.g., CD-DA for audio, CD-ROM for computer data) and the technology of optical storage.
    • The data was burned onto a write-once compact disc. (The information was recorded onto a CD that cannot be erased.)
Variants and Related Words
  • CD (n): The standard abbreviation for "compact disc."
  • CD-ROM (n): "Compact Disc Read-Only Memory"; a type of compact disc used for storing computer data.
  • CD-R (n): "Compact Disc-Recordable"; a blank compact disc that can be written to once.
  • CD-RW (n): "Compact Disc-ReWritable"; a compact disc that can be written, erased, and rewritten multiple times.
  • Disc (n): A general term for a flat, thin, round object; the preferred spelling in "compact disc" and related terms.
Synonyms
  • Optical disc: A broader category of storage media that includes CDs, DVDs, and Blu-ray discs.
  • Digital audio disc: A term specifying its use for sound recordings.
Related Phrases
  • To burn a CD: To write data onto a recordable compact disc.
    • I need to burn a CD of these music files for my friend.
  • CD drive: The hardware component in a computer that reads compact discs.
    • My laptop no longer has a built-in CD drive.
Related Idioms
    • The encyclopedia is available on disc. (The encyclopedia can be purchased in a CD-ROM format.)
compact disc

A child carefully places a compact disc into a portable player.

Noun
  1. a digitally encoded recording on an optical disk that is smaller than a phonograph record; played back by a laser

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