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
d
usually disc
: a rotor in a disc brake
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
Chiara Eisner, NPR, 23 Dec. 2025
Until now, these designs were typically limited to flat blocks, sheets, or discs.
—Kaif Shaikh, Interesting Engineering, 23 Dec. 2025
Three girl-moms who are professional writers collaborated on an album-by-album recap (including the Taylor’s Version discs), teeming with facts, opinions, gossip, thoughtful discussions and 175 photos.
—Jon Bream, Boston Herald, 22 Dec. 2025
The dough for these cookies can be prepared and stored in a disc, wrapped in plastic wrap and sealed in an airtight container for up to two days.
—Catherine Jessee, Southern Living, 22 Dec. 2025
See All Example Sentences for disc
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Noun
Fulks has chronic kidney disease, degenerative disc disease and requires a catheter to urinate.
—Chiara Eisner, NPR, 23 Dec. 2025
Until now, these designs were typically limited to flat blocks, sheets, or discs.
—Kaif Shaikh, Interesting Engineering, 23 Dec. 2025
Three girl-moms who are professional writers collaborated on an album-by-album recap (including the Taylor’s Version discs), teeming with facts, opinions, gossip, thoughtful discussions and 175 photos.
—Jon Bream, Boston Herald, 22 Dec. 2025
The dough for these cookies can be prepared and stored in a disc, wrapped in plastic wrap and sealed in an airtight container for up to two days.
—Catherine Jessee, Southern Living, 22 Dec. 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 31 Dec. 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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