any thin, flat, circular plate or object.
any surface that is flat and round, or seemingly so: the disk of the sun.
Computers. any of several types of media consisting of thin, round plates of plastic or metal, used for external storage: magnetic disk;hard disk;optical disk.
Botany, Zoology. any of various roundish, flat structures or parts.
Botany. (in the daisy and other composite plants) the central portion of the flower head, composed of tubular florets.
any of the circular steel blades that form the working part of a disk harrow.
Mathematics. the domain bounded by a circle.
- Also disc (for defs. 1, 2, 4-9, 12) .
- disklike, adjective
- disc, disk
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use disk in a sentence
The disks had different diameters, with the biggest disk at the bottom and the smallest disk on top.
The three disks have different diameters — the biggest disk is at the bottom and the smallest disk is at the top.
These rocks are the first solids that condensed out of the disk of dust and gas that surrounded the young sun and ultimately formed the planets, scientists say.Crushed space rocks hint at exoplanets’ early atmospheric makeup | Lisa Grossman | January 26, 2021 | Science News
So it is with gaming retailer GameStop, a relic of the pre-Internet era when people had to drive to the mall to get the latest Call of Duty, rather than download it directly to their console or pre-order a physical disk for mail delivery.
Your computer will move data as quickly as it can, taking into account the speeds of the source disk, the interface over which the data is flowing, and the capabilities of the destination disk.The best external hard drives: Expand your file storage | Eric Alt | January 22, 2021 | Popular-Science
Divide the dough in half and very gently pat each half into a round 1-inch-thick disk.
If your ears are tired of slick auto-tuned vocals, pick up this disk for an aural detox.
The direction of polarization for a quasar is determined by the accretion disk surrounding it.
We see the protoplanetary disk around it at an angle, but nearly “face-on.”
Which is lucky: we can see the gaps in the disk more clearly than if the disk were at a steeper angle.
The disk of light disappeared, and the alert constable could be heard moving along the corridor to inspect the other offices.Dope | Sax Rohmer
Now and then Venus may be observed as a black spot crossing the disk of the sun.Outlines of the Earth's History | Nathaniel Southgate Shaler
The disk of the upper wings is rather blacker than the rest.
For a few moments - 167 -the sun bathes the great garden in a pinkish glow, then drops slowly, a blood-red disk, behind the trees.The Real Latin Quarter | F. Berkeley Smith
I carry the pile to the table provided with an iron post, about eighteen inches high, topped with a small inverted disk.Prison Memoirs of an Anarchist | Alexander Berkman
British Dictionary definitions for disk
a variant spelling (esp US and Canadian) of disc
Also called: magnetic disk, hard disk computing a direct-access storage device consisting of a stack of plates coated with a magnetic layer, the whole assembly rotating rapidly as a single unit. Each surface has a read-write head that can move radially to read or write data on concentric tracks: Compare drum 1 (def. 9) See also floppy disk
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Scientific definitions for disk
: See magnetic disk.
: See optical disk.
The round, flat center, consisting of many disk flowers, found in the inflorescences of many composite plants such as the daisy.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.