disk

1 of 2

noun

variants or
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
c
usually disc : optical disc: such as
(1)
(2)
: cd
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
disklike adjective
or disclike
disklike particles

Illustration of disk

Illustration of disk
  • disk 3 D

disk

2 of 2

verb

variants or disc
disked or disced; disking or discing; disks or discs

transitive verb

: 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
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
Large solar telescopes provide high-resolution images but cover limited areas, while smaller instruments can monitor the entire solar disk but lack fine detail. Samantha Mathewson, Space.com, 25 May 2025 To free up disk space from the Recycle Bin: Search for Recycle Bin on your desktop and right-click it. Kurt Knutsson, FOXNews.com, 16 May 2025 In the same vein as a Play-Doh hair salon toy, an extruder works by using an auger tool to push the dough through one of the interchangeable shaping disks. Alexis Berger, Bon Appetit Magazine, 9 May 2025 The structure of the disk is dominated by four major spiral arms and several smaller ones. Phil Plait, Scientific American, 8 May 2025 See All Example Sentences for disk

Word History

Etymology

Noun

borrowed from Latin discus "discus, kind of plate, gong" borrowed from Greek dískos "discus," in Late Greek also "dish, round mirror, the sun's disk, gong" — more at discus

Verb

derivative of disk entry 1

First Known Use

Noun

1664, in the meaning defined at sense 1a

Verb

circa 1884, in the meaning defined above

Time Traveler
The first known use of disk was in 1664

Browse Nearby Words

Cite this Entry

“Disk.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/disk. Accessed 3 Jun. 2025.

Kids 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
3
usually disc : a tilling implement (as a plow) with sharp-edged circular cutting blades
also : one of these blades
disklike adjective

disk

2 of 2 verb
variants or disc
: to cultivate (land) with a disc

More from Merriam-Webster on disk

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