disc

noun

1. a phonograph record.
2. disk(defs 1, 2, 4–9).

verb (used with object)

3. Informal. to make (a recording) on a phonograph disc.
4. disk(defs 11, 12).

noun

1. any thin, flat, circular plate or object.
2. any surface that is flat and round, or seemingly so: the disk of the sun.
3. disc(def 1).
4. Computers. any of several types of media consisting of thin, round plates of plastic or metal, used for external storage: magnetic disk; floppy disk; optical disk.
5. Botany, Zoology. any of various roundish, flat structures or parts.
6. intervertebral disk.
7. Botany. (in the daisy and other composite plants) the central portion of the flower head, composed of tubular florets.
8. any of the circular steel blades that form the working part of a disk harrow.
9. Mathematics. the domain bounded by a circle.
10. Archaic. discus.

verb (used with object)

11. Informal. disc(def 3).
12. to cultivate (soil) with a disk harrow.

1. discount.
2. discovered.

1. variant of disco- before a vowel.

noun

1. a flat circular plate
2. something resembling or appearing to resemble thisthe sun’s disc
3. another word for (gramophone) record
4. anatomy any approximately circular flat structure in the body, esp an intervertebral disc
5. 1. the flat receptacle of composite flowers, such as the daisy
   2. (as modifier)a disc floret
6. the middle part of the lip of an orchid
7. 1. Also called: parking disca marker or device for display in a parked vehicle showing the time of arrival or the latest permitted time of departure or both
   2. (as modifier)a disc zone; disc parking
8. computing a variant spelling of disk (def. 2)

verb

9. to work (land) with a disc harrow

noun

1. a variant spelling (esp US and Canadian) of disc
2. 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 tracksCompare drum 1 (def. 9) See also floppy disk

n.

Latinate spelling preferred in British English for most uses of disk (q.v.). American English tends to use it in the musical recording sense; originally of phonograph records, recently of compact discs. Hence, discophile “enthusiast for gramophone recordings” (1940).

n.

American English preferred spelling, 1660s, “round flat surface,” from Latin discus “quoit, discus, disk,” from Greek diskos, from dikein “throw,” from PIE *dik-skos-, from root *deik- “to show, pronounce solemnly; also in derivatives referring to the directing of words or objects” [Watkins].

Sense of “phonograph disk” is 1888; computing sense is from 1947. Disk jockey first recorded 1941; dee-jay is from 1955; DJ is 1961; video version veejay is 1982. Disk-drive is from 1952.

n.

1. Variant ofdisk
2. A discus.

n.

1. A thin, flat, circular object or plate.
2. lamella

1. 1. See magnetic disk.
   2. See optical disk.
2. See intervertebral disk.
3. The round, flat center, consisting of many disk flowers, found in the inflorescences of many composite plants such as the daisy.