Illustration of disk
- disk 3 D
variants
or disc
plural disks or discs
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 disc
disked or disced; disking or discing; disks or discs
: to cultivate with an implement (such as a harrow or plow) that turns and loosens the soil with a series of discs
Cite this Entry
“Disk.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/disk. Accessed 27 Oct. 2026.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
