variant spelling of disk
1
a
: the seemingly flat figure of a celestial body
the solar disk
b
archaic
: discus
2
usually disc
: any of various rounded and flattened animal anatomical structures
especially
: intervertebral disc see also slipped disc
3
: the central part of the flower head of a typical composite made up of closely packed tubular flowers
4
: a thin circular object: such as
a
usually disc
: a phonograph record
b
: a round flat plate coated with a magnetic substance on which data for a computer is stored
5
usually disc
: one of the concave circular steel tools with sharpened edge making up the working part of a disc harrow or plow
also
: an implement employing such tools
variants
or disci-
or disco-
1
: disk
discoid
2
: phonograph record
discophile
Examples of disc in a Sentence
Recent Examples on the Web
Lee Sharrock, Forbes.com, 19 Sep. 2025
The Milky Way is our home galaxy with a disc of stars that spans more than 100,000 light-years.
—Eric Lagatta, USA Today, 18 Sep. 2025
Divide dough in half and form into 2 discs.
—Gretchen McKay, Twin Cities, 18 Sep. 2025
The last two discs of Through the Open Window capture Dylan’s famed concert at New York’s Carnegie Hall on Saturday, October 26, 1963.
—Matthew Strauss, Pitchfork, 17 Sep. 2025
See All Example Sentences for disc
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Noun
For his Art Car Boot Fair debut, Mr Doodle will arrive on a yellow American school bus completely covered in his signature doodles, present a live drawing performance, and launch signed copies of his new double picture disc vinyl record.
—Lee Sharrock, Forbes.com, 19 Sep. 2025
The Milky Way is our home galaxy with a disc of stars that spans more than 100,000 light-years.
—Eric Lagatta, USA Today, 18 Sep. 2025
Divide dough in half and form into 2 discs.
—Gretchen McKay, Twin Cities, 18 Sep. 2025
The last two discs of Through the Open Window capture Dylan’s famed concert at New York’s Carnegie Hall on Saturday, October 26, 1963.
—Matthew Strauss, Pitchfork, 17 Sep. 2025
See All Example Sentences for disc
Cite this Entry
“Disc.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/disc. Accessed 22 Sep. 2025.
Copy CitationMedical Definition
disc
noun
variants
or disk
: any of various rounded or flattened anatomical structures: as
a
: a mammalian blood cell
b
c
: intervertebral disc see also slipped disc
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