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
Examples of disk in a Sentence
Recent Examples on the Web
Joe Rao, Space.com, 3 Apr. 2026
Cosmos are members of the aster family (Asteracea), whose members produce disk-like flowers packed with tiny blooms and surrounded by showy ray petals.
—Kim Toscano, Southern Living, 3 Apr. 2026
Whizzing by the moon up to 6,000 miles above the surface, the astronauts will also glimpse the celestial body's full disk, seeing sights that not even the Apollo astronauts witnessed.
—Eric Lagatta, USA Today, 3 Apr. 2026
The most common animal the team found was an organism about the size of a human adult index finger that had a wormlike body and a disk that kept it rooted to the seafloor.
—Jackie Flynn Mogensen, Scientific American, 2 Apr. 2026
See All Example Sentences for disk
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Noun
Currently, the planet appears practically full (93% sunlit); a tiny, dazzling gibbous disk.
—Joe Rao, Space.com, 3 Apr. 2026
Cosmos are members of the aster family (Asteracea), whose members produce disk-like flowers packed with tiny blooms and surrounded by showy ray petals.
—Kim Toscano, Southern Living, 3 Apr. 2026
Whizzing by the moon up to 6,000 miles above the surface, the astronauts will also glimpse the celestial body's full disk, seeing sights that not even the Apollo astronauts witnessed.
—Eric Lagatta, USA Today, 3 Apr. 2026
The most common animal the team found was an organism about the size of a human adult index finger that had a wormlike body and a disk that kept it rooted to the seafloor.
—Jackie Flynn Mogensen, Scientific American, 2 Apr. 2026
See All Example Sentences for disk
Cite this Entry
“Disk.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/disk. Accessed 5 Apr. 2026.
Copy CitationKids Definition
disk
1 of 2 noun
variants
or disc
1
a
: the central part of the flower head of a typical plant (as a daisy or aster) of the composite family made up of closely packed tube-shaped flowers
b
: any of various rounded and flattened animal anatomical structures
especially
: intervertebral disk
2
: a thin circular object: 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
: CD
d
3
usually disc
: a tilling implement (as a plow) with sharp-edged circular cutting blades
also
: one of these blades
disk
2 of 2 verb
variants
or disc
: to cultivate (land) with a disc
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