disc

1 of 3

noun

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
c
usually disc : optical disc: such as
(1)
(2)
: cd
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

disc

2 of 3

abbreviation

disc-

3 of 3

combining form

variants or disci- or disco-
1
: disk
discoid
2
: phonograph record
discophile

Examples of disc in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Noun
Atkins also described having a metal plate and artificial disc in his back, along with three previous knee operations. — Danielle Minnetian, FOXNews.com, 7 Nov. 2026 Braking hardware comes from ByBre, comprising a 320-mm front disc and a 240-mm rear rotor, with cornering ABS providing additional assistance. — New Atlas, 5 Nov. 2026 Cruising on Autopilot The ET Max includes a CD-ROM disc with the necessary software and drivers. — David English, PC Magazine, 4 Nov. 2026 Dane was a guest star on the show in Season 2 and filmed his episode while dealing with a herniated disc in his neck. — Zack Sharf, Variety, 3 Nov. 2026 See All Example Sentences for disc

Word History

Etymology

Combining form

Latin, from Greek disk-, disko-, from diskos

Browse Nearby Words

Cite this Entry

“Disc.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/disc. Accessed 12 Nov. 2026.

Kids Definition

disc

variant of disk

Medical Definition

disc

noun
: any of various rounded or flattened anatomical structures: as
a
: a mammalian blood cell
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