disk Meaning, Definition & Usage

noun something with a round shape resembling a flat circular plate
disc; saucer.
- the moon's disk hung in a cloudless sky
noun a flat circular plate
disc.
noun sound recording consisting of a disk with a continuous groove; used to reproduce music by rotating while a phonograph needle tracks in the groove
phonograph recording; platter; phonograph record; record; disc.
noun (computer science) a memory device consisting of a flat disk covered with a magnetic coating on which information is stored
magnetic disk; disc; magnetic disc.
verb draw a harrow over (land)
harrow.

L. discus, Gr. . See Dish.

A discus; a quoit.
Some whirl the disk, and some the javelin dart. Pope.
A flat, circular plate; as, a disk of metal or paper.
(Astron.) The circular figure of a celestial body, as seen projected of the heavens.
(Biol.) A circular structure either in plants or animals; as, a blood disk; germinal disk, etc.
(Bot.) (a) The whole surface of a leaf. (b) The central part of a radiate compound flower, as in sunflower. (c) A part of the receptacle enlarged or expanded under, or around, or even on top of, the pistil.
(Zoöl.) (a) The anterior surface or oral area of coelenterate animals, as of sea anemones. (b) The lower side of the body of some invertebrates, especially when used for locomotion, when it is often called a creeping disk. (c) In owls, the space around the eyes.