noun, often attributive
\ ˈdisk How to pronounce disk (audio) \
variants: or

Definition of disk

 (Entry 1 of 2)

1a : the seemingly flat figure of a celestial body the solar disk
b archaic : discus
2 : any of various rounded and flattened animal anatomical structures especially : intervertebral disk — compare slipped disk
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 disk: such as
(1) : videodisc
(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


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

Definition of disk (Entry 2 of 2)

transitive verb

: to cultivate with an implement (such as a harrow or plow) that turns and loosens the soil with a series of discs

Illustration of disk

Illustration of disk


disk 3 D

In the meaning defined above

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Other Words from disk


disklike \ ˈdisk-​ˌlīk How to pronounce disklike (audio) \ adjective

Examples of disk in a Sentence

Recent Examples on the Web: Noun The Wolfe Disk is the most distant rotating disk galaxy ever observed, according to UC Santa Cruz, which participated in the research. Fox News, "Massive, rotating disk galaxy from the early universe discovered," 22 May 2020 Freeze the disks for up to three months, and thaw in the refrigerator overnight before using. Erin Jeanne Mcdowell, New York Times, "The Best Way to Freeze Baked Goods," 22 Apr. 2020 Recover the sheared end pieces of stone, which should be disk-shaped and sharp along the edge. Keith Mccafferty, Field & Stream, "How to Make Primitive Survival Weapons in the Bush," 24 Apr. 2020 Perhaps most notably, the Luci 2.0 weighs just 4.4 ounces—about equal to a deck of cards—and deflates to 1.5-inch-thick, 5-inch-wide disk, making it a perfect, easy-to-pack way to provide light to your campsite. Outdoor Life, "Four Essential, Space-Saving Pieces of Camping Gear," 6 Apr. 2020 In a food processor fitted with the shredding disk, shred potatoes and onions, using medium pressure. Savannah Eadens, The Courier-Journal, "A change to tradition: Louisville synagogues prepare to celebrate a sacred holiday virtually," 3 Apr. 2020 Thus, if a disk is responsible here, the transit should be greatly reduced compared to its depth at other wavelengths. John Timmer, Ars Technica, "Could we have already imaged a ringed exoplanet?," 14 Mar. 2020 Next, stand back and watch as the cloud’s remnant angular momentum spins and flattens the leftovers into a whirling disk around the star. Lee Billings, Scientific American, "New Horizons May Have Solved Planet Formation Cold Case," 20 Feb. 2020 Cheryl Ortiz was living with her husband and four kids in their Southbridge home in 2010, when her husband ruptured a disk in his back, was diagnosed with cancer, and her graduate school loans came due. Andrea Estes, BostonGlobe.com, "Rescuer or predator? Roxbury nonprofit that loans money to distressed homeowners faces lawsuit from clients," 16 Feb. 2020 Recent Examples on the Web: Verb The soil can be disked, but preparation is not necessary if the seed is placed in full sun and makes contact with the soil. Calvin Finch, ExpressNews.com, "Fall blooms to attract butterflies and hummingbirds to your San Antonio garden," 13 Sep. 2019 Quick tip: State biologists enhance turkey habitat at wildlife management areas by planting winter food, such as wheat, alfalfa or rye grass, and renewing plant succession by burning or disking. Brian Lovett, Outdoor Life, "The 2020 Spring Turkey Hunting State-by-State Forecast," 3 Feb. 2020 Size: Disk up to 0.7 inch (1.7 centimeters) wide; stalk up to 0.3 inch (0.8 centimeter) tall IUCN Red List Status: National Geographic, "8 Real-Life ‘Fantastic Beasts’ and Where to Find Them," 18 Nov. 2016

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'disk.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of disk


1664, in the meaning defined at sense 1a


circa 1884, in the meaning defined above

History and Etymology for disk


Latin discus — more at dish

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Statistics for disk

Last Updated

25 May 2020

Cite this Entry

“Disk.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/disk. Accessed 1 Jun. 2020.

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More Definitions for disk


variants: or disc \ ˈdisk \

Kids Definition of disk

1 : something that is or appears to be flat and round
2 usually disc : cd
3 : a round, thin, flat plate coated with a magnetic substance on which data for a computer is stored
4 usually disc : a phonograph record

Other Words from disk

disklike \ -​ˌlīk \ adjective


variants: or disc \ ˈdisk How to pronounce disc (audio) \

Medical Definition of disk

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

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More from Merriam-Webster on disk

Thesaurus: All synonyms and antonyms for disk

Rhyming Dictionary: Words that rhyme with disk

Spanish Central: Translation of disk

Nglish: Translation of disk for Spanish Speakers

Britannica English: Translation of disk for Arabic Speakers

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